American Civil War
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During the American Civil War, Missouri was a hotly contested border state populated by both Union and Confederate sympathizers. It sent armies, generals, and supplies to both sides, was represented with a star on both flags, maintained dual governments, and endured a bloody neighbor-against-neighbor intrastate war within the larger national war.
A slave state since statehood in 1821, Missouri's geographic position in the center of the country and at the rural edge of the American frontier ensured that it remained a divisive battleground for competing Northern and Southern ideologies in the years preceding the war. When the war began in 1861, it became clear that control of the Mississippi River and the burgeoning economic hub of St. Louis would make Missouri a strategic territory in the Trans-Mississippi Theater.
By the end of the war in 1865, nearly 110,000 Missourians had served in the Union Army and at least 30,000 in the Confederate Army;[ citation needed] many had also fought with bands of pro–Confederate partisans known as " bushwhackers".   The war in Missouri was continuous between 1861 and 1865, with battles and skirmishes in all areas of the state, from the Iowa and Illinois borders in the northeast to the Arkansas border in the southeast and southwest. Counting minor actions and skirmishes, Missouri saw more than 1,200 distinct engagements within its boundaries; only Virginia and Tennessee exceeded this total.
The first major Civil War battle west of the Mississippi River took place on August 10, 1861 at Wilson's Creek, Missouri, while the largest battle west of the Mississippi River was the Battle of Westport in Kansas City in 1864.
- 1 Origins
- 2 Secession crisis
- 3 Early military actions, 1861–1862
- 4 Guerrilla warfare, 1862–1864
- 5 Later military actions, 1864–1865
- 6 Aftermath
- 7 See also
- 8 References and notes
- 9 Further reading
- 10 External links
Missouri was initially settled by Southerners traveling up the Mississippi and Missouri rivers. Many brought slaves with them. Missouri entered the Union in 1821 as a slave state following the Missouri Compromise of 1820, in which Congress agreed that slavery would be illegal in all territory north of 36°30' latitude, except Missouri. The compromise was that Maine would enter the Union as a free state to balance Missouri.
Of the greatest concern for Missouri slave-holders in the years before the war was a federal law that decreed that if a slave physically entered a free state, the slave became free.[ citation needed] The Underground Railroad, a network of safe houses through which runaway slaves could find protection and refuge while heading north, was already established in the state, and slave owners were worried about the possibility of Missouri's entire western border becoming a conduit for the Underground Railroad if adjacent territories were made free states.
In 1854, the Kansas–Nebraska Act nullified the policy set by the Missouri Compromise by permitting the Kansas and Nebraska Territories to vote on whether they would join the Union as free or slave states. The result was a de facto war between pro-slavery residents of Missouri, called " Border Ruffians", and anti-slavery " Free-Staters" of Kansas, each of which sought to influence how Kansas entered the Union. The conflict involved attacks and murders of supporters on both sides, with the Sacking of Lawrence by pro-slavery forces and the Pottawatomie massacre led by abolitionist John Brown the most notable. Kansas initially approved a pro-slavery constitution called the Lecompton Constitution, but after the U.S. Congress rejected it, the state approved the anti-slavery Wyandotte Constitution and was admitted to the Union in January 1861. The violence along the Kansas–Missouri border foreshadowed the national violence to come, and indeed continued throughout the Civil War.
Against the background of Bleeding Kansas, the case of Dred Scott, a slave who in 1846 had sued for his family's freedom in St. Louis, reached the U.S. Supreme Court. In 1857, the Supreme Court handed down its decision, ruling not only that slaves were not automatically made free simply by entering a free state, but more controversially that no one of African ancestry was considered a U.S. citizen and therefore that African-Americans could not initiate legal action in any court, even when they clearly had what would otherwise be a valid claim. The decision calmed the skirmishes between Missouri and Kansas partisans, but its publicity enraged abolitionists nationwide and contributed to the vitriolic rhetoric that led to the Civil War.
By 1860, Missouri's initial southern settlers had been supplanted with a more diversified non-slave-holding population, including former northerners, particularly German and Irish immigrants. With war seeming inevitable, Missouri hoped to stay out of the conflict by remaining a part of the Union but militarily neutral – not sending men or supplies to either side and pledging to fight troops from either side who entered the state. The policy was first put forth in 1860 by outgoing Governor Robert Marcellus Stewart, who had Northern leanings. It was reaffirmed by incoming Governor Claiborne Fox Jackson, who had Southern leanings. Jackson, however, stated in his inaugural address that in case of federal "coercion" of southern states, Missouri should support and defend her "sister southern states". A Constitutional Convention to discuss secession was convened with Sterling Price presiding. The delegates voted to stay in the Union and supported the neutrality position.
In the United States presidential election of 1860, Abraham Lincoln received only 10 percent of Missouri's votes, while 71 percent favored either John Bell or Stephen A. Douglas, both of whom wanted to maintain the status quo. Douglas won the Missouri vote over Bell—one of only two states Douglas carried, the other being New Jersey—with the remaining 19 percent siding with Southern Democrat John C. Breckinridge.
At the time of the 1860 U.S. Census, Missouri's total population was 1,182,012, of which 114,931 (9.7%) were slaves. Most of the slaves lived in rural areas rather than cities. Of the 299,701 responses to "Occupation", 124,989 people listed "Farmers" and 39,396 listed "Farm Laborers." The next highest categories were "Laborers" (30,668), "Blacksmiths" (4,349), and "Merchants" (4,245).
Less than half the state's population was listed as native-born (475,246, or 40%). Those who had migrated from other states were predominantly from Kentucky (99,814), Tennessee (73,504), Virginia (53,937), Ohio (35,380), Indiana (30,463), and Illinois (30,138), with lesser amounts from other states. 906,540 people (77%) were listed as born in the United States. Of the 160,541 foreign-born residents of Missouri, most came from the German states (88,487), Ireland (43,481), England (10,009), France (5,283), and Switzerland (4,585).
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In the election of 1860, Missouri's newly elected governor was Claiborne Fox Jackson, a career politician and an ardent supporter of the South. Jackson campaigned as a Douglas Democrat, favoring a conciliatory program on issues that divided the country. After Jackson's election, however, he immediately began working behind the scenes to promote Missouri's secession.  In addition to planning to seize the federal arsenal at St. Louis, Jackson conspired with senior Missouri bankers to illegally divert money from the banks to arm state troops, a measure that the Missouri General Assembly had so far refused to take. 
Missouri's nominal neutrality was tested early on in a conflict over the St. Louis Arsenal. The Federal Government reinforced the Arsenal's tiny garrison with several detachments, most notably a force from the 2nd Infantry under Captain Nathaniel Lyon. The other federal arsenal in Missouri, Liberty Arsenal, had been captured on April 20 by secessionist militias and, concerned by widespread reports that Governor Jackson intended to use the Missouri Volunteer Militia to also attack the St. Louis Arsenal and capture its 39,000 small arms, Secretary of War Simon Cameron ordered Lyon (by that time in acting command) to evacuate the majority of the munitions out of the state. 21,000 guns were secretly evacuated to Alton, Illinois on the evening of April 29, 1861. At the same time, Governor Jackson called up the Missouri State Militia under Brigadier General Daniel M. Frost for maneuvers in suburban St. Louis at Camp Jackson. These maneuvers were perceived by Lyon as an attempt to seize the arsenal. On May 10, 1861, Lyon attacked the militia and paraded them as captives through the streets of St. Louis. A riot erupted, and Lyon's troops, a Missouri militia mainly composed of German immigrants, opened fire on the attacking crowd, killing 28 people and injuring 100.
The next day, the Missouri General Assembly authorized the formation of a Missouri State Guard with Major General Sterling Price as its commander to resist invasions from either side (but initially from the Union Army). William S. Harney, federal commander of the Department of the West, moved to quiet the situation by agreeing to Missouri neutrality in the Price-Harney Truce. This led to Confederate sympathizers taking over most of Missouri, with pro-Unionists being harassed and forced to leave. President Lincoln overruled the truce agreement and relieved Harney of command, replacing him with Lyon.
On June 11, 1861, Lyon met with Governor Jackson and Price at St. Louis' Planter's House hotel. The meeting, theoretically to discuss the possibility of continuing the Price-Harney Truce between U.S. and state forces, quickly deadlocked over basic issues of sovereignty and governmental power. Jackson and Price, who were working to construct the new Missouri State Guard in nine military districts statewide, wanted to contain the federal toe-hold to the Unionist stronghold of St. Louis. Jackson demanded that federal forces be limited to the boundaries of St. Louis, and that pro-Unionist Missouri "Home Guards" in several Missouri towns be disbanded. Lyon refused, and stated that if Jackson insisted on so limiting the power of the federal government, "This means war". After Jackson was escorted from the lines, Lyon began a pursuit of Jackson and Price and his elected state government through the Battle of Boonville and Battle of Carthage (1861). Jackson and other pro-Confederate politicians fled to the southern part of the state. Jackson and a rump of the General Assembly eventually set up a government-in-exile in Neosho, Missouri and enacted an Ordinance of Secession. This government was recognized by the rest of the Confederacy despite the fact that the "Act" was not endorsed by a plebiscite (as required by Missouri state law) and that Jackson's government was all but powerless inside Missouri.
On July 22, 1861, following Lyon's capture of the Missouri capital at Jefferson City, the Missouri Constitutional Convention reconvened and declared the Missouri governor's office to be vacant. On July 28, it appointed former Missouri Supreme Court Chief Justice Hamilton Rowan Gamble as governor of the state and agreed to comply with Lincoln's demand for troops. The provisional Missouri government began organizing new pro-Union regiments. Some, like the 1st Missouri Volunteer Cavalry Regiment, organized on September 6, 1861, fought through the entire Civil War.  By the war's end, some 447 Missouri Regiments had fought for the Union, with many men serving in more than one regiment. 
In October 1861, the remnants of the elected state government that favored the South, including Jackson and Price, met in Neosho and voted to formally secede from the Union. The measure gave them votes in the Confederate Congress, but otherwise was symbolic, since they did not control any part of the state. The capital was to eventually move to Marshall, Texas. When Jackson died in office in 1862, his lieutenant governor, Thomas Caute Reynolds, succeeded him.
Military actions in Missouri are generally divided into three phases, starting with the Union removal of Governor Jackson and pursuit of Sterling Price and his Missouri State Guard in 1861; a period of neighbor-versus-neighbor bushwhacking guerrilla warfare from 1862 to 1864 (which actually continued long after the war had ended everywhere else, until at least 1889); and finally Sterling Price's attempt to retake the state in 1864.
The largest battle in the campaign to evict Jackson was the Battle of Wilson's Creek near Springfield, Missouri, on August 10, 1861. The battle marked the first time that the Missouri State Guard fought alongside Confederate forces. A combined force of over 12,000 Confederate soldiers, Arkansas State Troops, and Missouri State Guardsmen under Confederate Brigadier Benjamin McCulloch fought approximately 5,400 Federals in a punishing six-hour battle. Union forces suffered over 1,300 casualties, including Lyon, who was fatally shot. The Confederates lost 1,200 men. The exhausted Confederates did not closely pursue the retreating Federals. In the aftermath of the battle, Southern commanders disagreed as to the proper next step. Price argued for an invasion of Missouri. McCulloch, concerned about the security of Arkansas and Indian Territory and skeptical about finding enough supplies for his army in central Missouri, refused. The Confederate and Arkansas troops fell back to the border, while Price led his Guardsmen into northwestern Missouri to attempt to recapture the state.
Price's emboldened Missouri State Guard marched on Lexington, besieging Colonel James A. Mulligan's garrison at the Siege of Lexington on September 12–20. Deploying wet hemp bales as mobile breastworks, the rebel advance was shielded from fire, including heated shot. By early afternoon on the 20th, the rolling fortification had advanced close enough for the Southerners to take the Union works in a final rush. By 2:00 p.m., Mulligan had surrendered. Price was reportedly so impressed by Mulligan's demeanor and conduct during and after the battle that he offered him his own horse and buggy, and ordered him safely escorted to Union lines. Years later, in his book The Rise and Fall of the Confederate Government, Confederate president Jefferson Davis opined that "The expedient of the bales of hemp was a brilliant conception, not unlike that which made Tarik, the Saracen warrior, immortal, and gave his name to the northern pillar of Hercules." 
The hopes of many Southern-leaning, mostly farming-dependent, families, including Jesse James and family in Liberty, Missouri, rose and fell by news of Price's battles. "If Price succeeded, the entire state of Missouri might fall into the hands of the Confederacy. For all anyone knew, it would force Lincoln to accept the South's independence, in light of earlier rebel victories. After all, no one expected the war to last much longer."  The Siege and Battle of Lexington, also called the Battle of the Hemp Bales, was a huge success for the rebels, and meant rebel ascendancy, albeit temporarily, in western and southwest Missouri. Combined with the loss of such a pivotal leader of the federals' western campaign in Nathaniel Lyon, and the Union's stunning defeat in the war's first major land battle at Bull Run, Missouri's secessionists were "jubilant." Exaggerated stories and rumors of Confederate successes spread easily in this era of slower, often equine-based communication. St. Louis' (ironically named) Unionist-Democrat Daily Missouri Republican reported some of the secessionist scuttlebutt a week after the rebel victory at Lexington:
A party with whom I have conversed, says no one has any idea how much the secession cause has been strengthened since PRICE'S march to Lexington, and particularly since its surrender. The rebels are jubilant, and swear they will drive the Federalists into the Missouri and Mississippi before two months are over.
Reports are rife in Western Missouri that the Southern Confederacy has been recognized by England and France, and that before the last of October the blockade will be broken by the navies of both nations. The rebels prophesy that before ten years have elapsed the Confederacy will be the greatest, most powerful, and prosperous, nation on the globe, and that the United States will decay, and be forced to seek the protection of England to prevent their being crushed by the South. 
Rebel ascendancy in Missouri was short-lived, however, as General John C. Frémont quickly mounted a campaign to retake Missouri. And "...without a single battle, the momentum suddenly shifted." On September 26, "Frémont moved west from St. Louis with an army of thirty-eight thousand. Soon, he arrived at Sedalia, southeast of Lexington, threatening to trap the rebels against the river."  On September 29, Price was forced to abandon Lexington, and he and his men moved into southwest Missouri; "...their commanders do not wish to run any risk, their policy being to make attacks only where they feel confident, through superiority of numbers, of victory."  Price and his generals stuck firmly to this cautious strategy, and similar to General Joseph E. Johnston's retreat toward Atlanta, Price's Missouri State Guard fell back hundreds of miles in the face of a superior force. They soon retreated from the state and headed for Arkansas and later Mississippi.
Small remnants of the Missouri Guard remained in the state and fought isolated battles throughout the war. Price soon came under the direct command and control of the Confederate Army. In March 1862, any hopes for a new offensive in Missouri were dimmed with a decisive Union victory at the Battle of Pea Ridge just south of the border in Arkansas. The Missouri State Guard stayed largely intact as a unit through the war, but suffered heavy casualties in Mississippi in the Battle of Iuka and the Second Battle of Corinth.
John C. Frémont replaced Lyon as commander of the Department of the West. Following the Battle of Wilson's Creek, he imposed martial law in the state and issued an order freeing the slaves of Missourians who were in rebellion.
The property, real and personal, of all persons in the State of Missouri who shall take up arms against the United States, and who shall be directly proven to have taken active part with their enemies in the field, is declared to be confiscated to the public use; and their slaves, if any they have, are hereby declared free. 
This was not a general emancipation in the state as it did not extend to slaves owned by citizens who remained loyal. It did, however, exceed the Confiscation Act of 1861 which only allowed the United States to claim ownership of the slave if the slave was proven to "work or to be employed in or upon any fort, navy-yard, dock, armory, ship, entrenchment, or in any military or naval service whatsoever, against the Government and lawful authority of the United States."  Lincoln, fearing the emancipation would enrage neutral Missourians and slave states in Union control, granted Governor Gamble's request to rescind the emancipation and ease martial law.
While various forces battled inconclusively for southwest Missouri, a unique cooperative effort between the U.S. Army, U.S. Navy, and civilian resources built a war-winning brown-water navy. St. Louis river salvage expert and engineering genius James Buchanan Eads  won a contract to build a fleet of shallow-draft ironclads for use on the western rivers. An unusually cooperative relationship between Army officials, who would own the vessels, and Navy officers, who would command them, helped speed the work. Drawing on his reputation and personal credit as well as that of St. Louis Unionists, Eads used subcontractors throughout the Midwest (and as far east as Pittsburgh) to produce nine ironclads in just over three months. Built at Eads' own Union Marine Works in the St. Louis suburb of Carondelet and at a satellite yard in Cairo, Illinois, the seven City-class ironclads,  Essex, and the heavy ironclad Benton were the first U.S. ironclads and the first to see combat.
St. Louis' Benton Barracks became the mustering depot for western troops, and in February 1862, Department of Missouri commander Henry Halleck approved a joint invasion of west Tennessee along the Tennessee and Cumberland Rivers. Army troops under Brigadier General Ulysses S. Grant, alongside the newly built Western Gunboat Flotilla commanded by Navy Flag Officer Andrew Hull Foote, captured Fort Henry and Fort Donelson, unhinging the Confederate defensive perimeter in the west. After the subsequent Battle of Shiloh, the Federal Army pushed into northern Mississippi, while the Gunboat fleet moved down the Mississippi with cooperating Federal troops, systematically capturing every Confederate position north of Vicksburg, Mississippi.
The riverine strategy put the Confederacy on the defensive in the west for the rest of the war, and effectively ended meaningful Confederate efforts to recapture Missouri. The defeat of the Confederate army under Earl Van Dorn, Benjamin McCulloch, and Price in northwestern Arkansas at the Battle of Pea Ridge further discouraged the Confederate leadership as to the wisdom, or possibility, of occupying Missouri. Subsequent Confederate military action in the state would be limited to a few large raids (notably Shelby's Raid of 1863 and Price's Raid of 1864), and partial endorsement of the activities of Missouri guerrillas.
During the war, thousands of black refugees poured into St. Louis, where the Freedmen's Relief Society, the Ladies Union Aid Society, the Western Sanitary Commission, and the American Missionary Association (AMA) set up schools for their children. 
The Western Sanitary Commission was a private agency based in St. Louis and a rival of the larger U.S. Sanitary Commission. It operated during the war to help the U.S. Army deal with sick and wounded soldiers. It was led by abolitionists and especially after the war focused more on the needs of freedmen. It was founded in August 1861, under the leadership of Reverend William Greenleaf Eliot, to care for wounded soldiers after the opening battles. It was supported by private fundraising in the city of St. Louis, as well as from donors in California and New England. Parrish explains it selected nurses, provided hospital supplies, set up several hospitals, and outfitted several hospital ships. It also provided clothing and places to stay for freedmen and refugees, and set up schools for black children. It continued to finance various philanthropic projects until 1886.  
The Battle of Wilson's Creek was the last large-scale engagement in Missouri until Sterling Price returned in 1864 in a last-ditch attempt to recapture the state. In the intervening time, the state endured widespread guerrilla warfare in which Southern partisan rangers and bushwhackers battled Kansas-based irregulars known as Jayhawkers and Redlegs or "Redleggers" (from the red gaiters they wore around their lower legs) and their Union allies.
Jayhawker raids against perceived civilian "Confederate sympathizers" alienated Missourians and made maintaining the peace even harder for the Unionist provisional government. As Major General Henry Halleck wrote General John C. Frémont in September 1861, Jayhawker raider Jim Hale had to be removed from the Kansas border as "A few more such raids" would render Missouri "as unanimous against us as is Eastern Virginia."  While Jayhawker violence alienated communities that otherwise might have been loyal supporters of the Union, marauding bands of pro-secession bushwhackers sustained guerrilla violence and outright banditry, especially in Missouri's northern counties. Major General John Pope, who oversaw northern Missouri, blamed local citizens for not doing enough to put down bushwhacker guerrillas and ordered locals to raise militias to counter them. "Refusal to do so would bring an occupying force of federal soldiers into their counties."  Pope's, Ewing's and Frémont's heavy-handed approach alienated even those civilians who were suffering at the hands of the bushwhackers.
Although guerrilla warfare occurred throughout much of the state, the most notable incidents occurred in northern Missouri and were characterized by ambushes of individuals or families in rural areas. These incidents were particularly nefarious because their vigilante nature was outside the command and control of either side and often pitted neighbor against neighbor. Civilians on all sides faced looting, violence and other depredations.
Perhaps the costliest incidents of guerrilla warfare were the Sacking of Osceola, the burning of Platte City, and the Centralia Massacre. Among the most notorious bushwhackers were William C. Quantrill's raiders, Silas M. Gordon, William "Bloody Bill" Anderson, and a young Jesse James.
In 1863, following the Lawrence Massacre in Kansas, Union General Thomas Ewing, Jr. accused farmers in rural Missouri of either instigating the massacre or supporting it. He issued General Order No. 11 which forced all residents of the rural areas of four counties ( Jackson, Cass, Bates and Vernon) south of the Missouri River on the Kansas border to leave their property, which was then burned. The order applied to farmers regardless of loyalty, although those who could prove their loyalty to the Union could stay in designated towns and those who could not were exiled entirely. Among those forced to leave were Kansas City founder John Calvin McCoy and its first mayor, William S. Gregory.
By 1864, with the Confederacy losing the war, Sterling Price reassembled his Missouri Guard and launched a last-ditch offensive to take Missouri. However, Price was unable to repeat his victorious 1861 campaigns in the state. Striking in the southeastern portion of the state, Price moved north and attempted to capture Fort Davidson but failed. Next, Price sought to attack St. Louis but found it too heavily fortified and thus broke west in a parallel course with the Missouri River. This took him through the relatively friendly country of the "Boonslick", which had provided a large percentage of the Missouri volunteers who had joined the CSA. Ironically, although Price had issued orders against pillage, many of the pro-Confederate civilians in this area (which would be known as "Little Dixie" after the war) suffered from looting and depredations at the hands of Price's men. 
The Federals attempted to retard Price's advance through both minor and substantial skirmishing such as at Glasgow and Lexington. Price made his way to the extreme western portion of the state, taking part in a series of bitter battles at the Little Blue, Independence, and Byram's Ford. His Missouri campaign culminated in the Battle of Westport, in which over 30,000 troops fought, leading to the defeat of his army. Price's Confederates retreated through Kansas and Indian Territory into Arkansas, where they stayed for the remainder of the war.
Since Missouri had remained in the Union, it did not suffer outside military occupation or other extreme aspects of the Reconstruction era. The immediate post-war state government was controlled by Republicans, who attempted to execute an "internal reconstruction", banning politically powerful former secessionists from the political process and empowering the state's newly emancipated African-American population. This led to major dissatisfaction among many politically important groups, and provided opportunities for reactionary elements in the state.
The Democrats returned to being the dominant power in the state by 1873 through an alliance with returned ex-Confederates, almost all of whom had been part of the pro-slavery anti-Benton wing of the Missouri Democratic Party prior to the Civil War. The reunified Democratic Party exploited themes of racial prejudice and their own version of the South's "Lost Cause", which portrayed Missourians as victims of Federal tyranny and outrages, and depicted Missouri Unionists and Republicans as traitors to the state and criminals. This capture of the historical narrative was largely successful, and secured control of the state for the Democratic Party through the 1950s. The ex-Confederate/Democratic resurgence also defeated efforts to empower Missouri's African-American population, and ushered in the state's version of Jim Crow legislation. This was motivated both by widespread racial prejudice and concerns that former slaves were likely to be reliable Republican voters.
Many newspapers in 1870s Missouri were vehement in their opposition to national Radical Republican policies, for political, economic, and racial reasons. The notorious James-Younger gang capitalized on this and became folk heroes as they robbed banks and trains while getting sympathetic press from the state's newspapers—most notably the Kansas City Times under founder John Newman Edwards. Jesse James, who had fought beside bushwhacker "Bloody Bill" Anderson at Centralia, attempted to excuse his murder of a resident of Gallatin during a bank robbery, saying he thought he was killing Samuel P. Cox, who had hunted down Anderson after Centralia. In addition, the vigilante activities of the Bald Knobbers in southwest Missouri during the 1880s have been interpreted by some as a continuation of Civil War-related guerrilla warfare. 
- Confederate States of America - animated map of state secession and Confederacy
- List of battles fought in Missouri
- List of Missouri Confederate Civil War units
- List of Missouri Union Civil War units
- Missouri State Guard
- St. Louis in the Civil War
- Missouri Secretary of State, "Abstract of Wars & Military Engagements: War of 1812 through World War I"
- Missouri Civil War Museum Archived July 19, 2015, at the Wayback Machine.
- Fulton, by far the current largest city was not listed in the printed list. Other cities/towns in Callaway were Bourbon (1,689); Cedar (1,639); Catesausdlsein (1,993); Liberty (1,448); and Round Prairie (955).
- Phillips, Christopher. Missouri's Confederate: Claiborne Fox Jackson and the Creation of Southern Identity in the Border West. Columbia: University of Missouri Press, 2000. ISBN 978-0-8262-1272-6. pp. 238-239
- Geiger, Mark W. Financial Fraud and Guerrilla Violence in Missouri's Civil War, 1861–1865. New Haven: Yale University Press, 2010. ISBN 978-0-300-15151-0. "Introduction"
- Missouri Digital Heritage (2007). "1St REGIMENT CAVALRY VOLUNTEERS". Missouri Office of the Secretary of State • Missouri State Library • Missouri State Archives • The State Historical Society of Missouri. Retrieved July 12, 2015. NOTE: These records also refer to the National Archives and Records Administration; Carded Records Showing Military Service of Soldiers Who Fought in Volunteer Organizations During the American Civil War, compiled 1890–1912, documenting the period 1861–1866; Catalog ID: 300398; Record Group #: 94; Roll #: 724.
- "Civil War Archives - Missouri - Union Regimental Index". Civil War Archives. 2009. Retrieved July 19, 2015.
- Davis, Jefferson, The Rise and Fall of the Confederate Government. Publication date unknown, pg. 432. Retrieved on July 27, 2008.
- Stiles, T. J. (2003). Jesse James: Last Rebel of the Civil War. Westminster, MD, USA: Knopf Publishing Group. p. 72. ISBN 978-0-375-70558-8.
- J. H. B. (September 27, 1861). "From Jefferson City: Special Dispatch to the Republican". Daily Missouri Republican, Daily Evening Edition. Saint Louis, Mo.: State Historical Society of Missouri; Columbia, MO. p. 1. Retrieved February 16, 2012.
- "The Beginning of the End". Harper's Weekly, Sept. 14, 1861. 2nd paragraph.
- Eads is considered one of the most exceptional engineers of the 19th century. He became a millionaire before the war by salvaging river wrecks and cargoes with a fleet of specially designed salvage vessels and a diving bell. During the war he built four generations of ironclads, the last of which left the river, joined the Federal fleet and participated in the attack on Mobile Bay. After the war he built the revolutionary steel arch bridge at St. Louis and designed the river control system for the mouth of the Mississippi. The American Association of Civil Engineers memorialized Eads with a tablet honoring him in the Colonnade of the Hall of Fame at New York University, and he was the first American to be awarded the prestigious Albert Medal by the British Royal Society of Arts.
- The City-class ironclads were named after river cities and towns: Cairo, Carondelet, Cincinnati, Louisville, Mound City, Pittsburgh, and St. Louis. They were initially commissioned by the War Department (Army) rather than the Navy, and even after transfer to Navy control were referred to as "U.S. Gunboat" rather than "United State Ship" (U.S.S.) in official correspondence. (In subsequent official U.S. Navy history, however, they are referred to as "U.S.S." and considered commissioned warships and part of fleet lineage.) When the river fleet was transferred to the Navy in the autumn of 1862, the U.S. Gunboat St. Louis was renamed Baron DeKalb, there already being a sloop-of-war named St. Louis in naval service.
- Lawrence O. Christensen, "Black Education in Civil War St. Louis," Missouri Historical Review, April 2001, Vol. 95 Issue 3, pp 302-316
- William E. Parrish, "The Western Sanitary Commission," Civil War History, March 1990, Vol. 36 Issue 1, pp 17–35
- W.S. Rosecrans, "Annual Report of the Western Sanitary Commission for the Years Ending July, 1862, and July, 1863"; "Circular of Mississippi Valley Sanitary Fair, to Be Held in St. Louis, May 17th, 1864" The North American Review, Vol. 98, No. 203 (Apr., 1864), pp. 519-530 in JSTOR
- Siddali, Silvana (2009). Missouri's War: The Civil War in Documents. Athens, Ohio: Ohio University Press. p. 122. ISBN 978-0-8214-4335-4.
- After Price's return south, the issue of looting and murder during "independent scouting" would become a major embarrassment during the court martial inquest into the failure of Price's Raid. Price's officers blamed these bad actions on the low quality of some of the men who composed Price's force.
- The political orientation of post-war "armed resistance" was different in the rugged south-central part of the state. In this case, notionally pro-Union "Bald Knobbers" were (supposedly) resisting the political resurgence of formerly pro-secessionist "anti-Bald Knobbers". This violence may have had more to do with struggles for local power by group and family alliances than with war-time politics.
- Anderson, Galusha. The Story of a Border City During the Civil War (1908) online.
- Astor, Aaron. Rebels on the Border: Civil War, Emancipation, and the Reconstruction of Kentucky and Missouri (LSU Press; 2012) 360 pp
- Boman, Dennis K. "All Politics Are Local: Emancipation in Missouri," in Lincoln Emancipated: The President and the Politics of Race, ed. Brian R. Dirck, pp 130–54. (Northern Illinois University Press, 2007)
- Boman, Dennis K. Lincoln's Resolute Unionist: Hamilton Gamble, Dred Scott Dissenter and Missouri's Civil War Governor (Louisiana State University Press, 2006) 263 pp.
- Fellman, Michael. Inside War: The Guerrilla Conflict in Missouri during the American Civil War (1989).
- Fitzsimmons, Margaret Louise. "Missouri Railroads During the Civil War and Reconstruction." Missouri Historical Review 35#2 (1941) pp. 188–206
- Geiger, Mark W. Financial Fraud and Guerrilla Violence in Missouri's Civil War, 1861–1865. (Yale University Press, 2010) ( ISBN 9780300151510)
- Hess, Earl J. "The 12th Missouri Infantry: A Socio-Military Profile of a Union Regiment," Missouri Historical Review (October 1981) 76#1 pp 53–77.
- Kamphoefner, Walter D., "Missouri Germans and the Cause of Union and Freedom," Missouri Historical Review, 106#2 (April 2012), 115-36.
- Lause, Mark A. Price's Lost Campaign: The 1864 Invasion of Missouri (University of Missouri Press; 2011), 288 pages
- McGhee, James E. Guide to Missouri Confederate Units, 1861–1865 (University of Arkansas Press, 2008) 296 pp.
- March, David D. "Charles D. Drake and the Constitutional Convention of 1865." Missouri Historical Review 47 (1953): 110-123.
- Nichols, Bruce. Guerrilla Warfare in Civil War Missouri, 1862 (Jefferson, N.C.: McFarland, 2004) 256 pp. ISBN 0-7864-1689-0
- Parrish, William E. A History of Missouri, Volume III: 1860 to 1875 (1973, reprinted 2002) ( ISBN 0-8262-0148-2); the standard scholarly history
- Phillips, Christopher. Missouri's Confederate: Claiborne Fox Jackson and the Creation of Southern Identity in the Border West (U of Missouri Press, 2000) ( ISBN 978-0-8262-1272-6)
- Potter, Marguerite. "Hamilton R. Gamble, Missouri's War Governor." Missouri Historical Review 35#1 (1940): 25-72
- Saeger, Andrew M. "The Kingdom Of Callaway: Callaway County, Missouri during the Civil War." (MA thesis, Northwest Missouri State University, 2013). bibliography pp 75–81 online
- Siddali, Silvana R., ed. Missouri's War: The Civil War in Documents (Athens: Ohio University Press, 2009) 274 pp.
- Stith, Matthew M. "At the Heart of Total War: Guerrillas, Civilians, and the Union Response in Jasper County, Missouri, 1861–1865," Military History of the West 38#1 (2008), 1-27.
- American Civil War Research Database Status
- A Few Fascinating Missouri Civil War Facts
- Divided State: Missouri Military Organizations in the Civil War
- Missouri Civil War Battles, Skirmishes, & Engagements
- Missouri Civil War Union Militia Organizations
- Missouri in the Civil War
- National Park Service map of Civil War sites in Missouri
- Official Missouri State Civil War Site
- The Civil War in Missouri: a Selected, Annotated Bibliography
- The Civil War, Slavery and Reconstruction in Missouri
List of C.S. states by date of admission to the Confederacy
Admitted on November 28, 1861 (12th)