Letter from George Brinton McClellan to Ambrose Everett Burnside, January 7, 1862
written by George Brinton McClellan, 1826-1885 (1862); in Letter of the Secretary of War, Transmitting Report on the Organization of the Army of the Potomac, and of its Campaigns in Virginia and Maryland (District of Columbia: United States. Government Printing Office, 1864), 23-24