Organization of the Army of the Tennessee, Major General Ulysses S. Grant, U. S. Army, commanding, January 31, 1863: Official Records, Series I, Volume XXIV, Part 3, p. 23.
Organization of the Department of the Tennessee, Major General Ulysses S. Grant, U. S. Army, commanding, April 30, 1863: Official Records, Series I, Volume XXIV, Part 3, p. 250.
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Christopher Waldrep, Vicksburg's Long Shadow : The Civil War Legacy Of Race And Remembrance, Rowman & Littlefield, (ISBN978-0-7425-4868-8, lire en ligne), p. 247.