The following are excerpts from the 2010 editions of Secretaries of War and Secretaries of the Army: Portraits and Biographical Sketches and Commanding Generals and Chiefs of Staff: Portraits and Biographical Sketches by William G. Bell.

Secretaries of War

• Simon Cameron – Secretary of War from 5 March 1861 to 14 January 1862
• Edwin M. Stanton – Secretary of War from 20 January 1862 to 28 May 1868

Commanding Generals of the United States Army

• Winfield Scott – Commanding General from 05 July 1841 to 01 November 1861
• George B. McClellan – Commanding General from 01November 1861 to 11 March 1862
• Henry W. Halleck – Commanding General from 23 July 1862 to 09 March 1864
• Ulysses S. Grant – Commanding General from 09 March 1864 to 04 March 1869