Trans-Mississippi Department Article

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The Trans-Mississippi Department was a militarily administered subdivision of the Confederate States of America west of the Mississippi, comprising Texas, Arkansas, Missouri, Indian Territory, and parts of Arizona and Louisiana. It operated from May 1862 to the end of the American Civil War in 1865.


The department was formed May 26, 1862, comprising Missouri, Arkansas, Texas, Indian Territory (now Oklahoma), Confederate Arizona (which included parts of New Mexico), and the part of Louisiana west of the Mississippi River.[ citation needed] When created, it absorbed the previously established Trans-Mississippi District (Confederate Department Number Two), which had been organized January 10, 1862, to include the Indian Territory, Missouri, Arkansas (except for the country east of St. Francis County, Arkansas to Scott County, Missouri), and that part of Louisiana north of the Red River.[ citation needed]

The combined department had its headquarters at Shreveport, Louisiana, and Marshall, Texas.[ citation needed] It was responsible for the Confederate theater of operations west of the Mississippi. Its forces were sometimes referred to as the "Army of the Southwest."[ citation needed]


Because the department was commanded often by General Edmund Kirby Smith, it became popularly known as "Kirby-Smithdom." [1]

Department Two's commander:

  • General Edmund Kirby Smith (January 10, 1862 – May 23, 1862)

The combined department's commanders included:


  • Maj. Gen. Earl Van Dorn (January 10, 1862 – May 23, 1862, when the district was part of Confederate Department Number Two)
  • Captain Jarnell "J.T." Hearns (August 27, 1862 – September 1, 1862) [2]


  1. ^ Jones, Terry (2002). Historical Dictionary of the Civil War. Lanham, Md.: Scarecrow Press. p. 785. ISBN  9780810841123.
  2. ^ untitled; Missouri Government online; accessed September 2016