Headquarters, Army of the Potomac, Mar. ’62 < to February • March 1862 • to April > Guards & Orderlies Sturgis (Illinois) Rifles from Provost Guard (below) McClellan Dragoons (Illinois) from Cavalry Reserve Oneida (New York) Cavalry Company from Cavalry Reserve 4th United States Cavalry, Cos. A & E from Provost Guard (below) Provost Guard Colonel Andrew Porter Sturgis (Illinois) Rifles to Guards & Ordelies (above) 2nd United States Infantry Regiment to Infantry Reserve (below) 2nd United States Cavalry Regiment from Cavalry Reserve 3rd United States Infantry, Companies BDGH&K to Infantry Reserve (below) 4th United States Infantry Regiment to Infantry Reserve (below) 6th United States Infantry Regiment to Infantry Reserve (below) 8th United States Infantry, Cos. F&G 4th United States Cavalry, Cos. A&E to Guards & Ordelies (above) 5th United States Artillery, Battery K to Artillery Reserve Engineer Brigade 15th New York Engineer Regiment 50th New York Engineer Regiment Regular Engineer Battalion Siege Artillery 1st Connecticut Heavy Artillery from Defenses Wahington Infantry Reserve Brigadier General George Sykes 2nd United States Infantry Regiment 3rd United States Infantry, 6 Cos. 4th United States Infantry Regiment 6th United States Infantry Regiment 10th United States Infantry, 4 Cos. 11th United States Infantry Regiment 12th United States Infantry Regiment 14th United States Infantry Regiment 17th United States Infantry, 4 Cos. 5th New York Infantry Regiment
