2nd District of Columbia Infantry Regiment in the Civil War

1862
February 26	The 2nd District of Columbia Infantry Regiment was organized at Washington, D.C. under the command of Colonel Isaac A. Peck and Lieutenant Colonel Charles M. Alexander
March	Attached to Military District of Washington, D.C. for duty in the Defenses of Washington and Alexandria
June 7	Colonel Peck resigned
June 12	Lieutenant Colonel Alexander was promoted to colonel
September 6-22	Maryland Campaign Attached temporarily to 2nd Brigade, 1st Division, 5th Corps, Army of the Potomac.
September 16-17	Battle of Antietam The regiment was in reserve and not engaged.
September 19	Sharpsburg, Shepherdstown Ford and near Williamsport
September 20	Near Shepherdstown
October	Returned to duty in the Defenses of Washington and Alexandria
1863
December	Colonel Alexander took command of Tyler’s Division
1864
March	Assigned to 1st Brigade, Tyler’s Division, 22nd Army Corps, which was commanded by Colonel Alexander
May	Assigned to District of Alexandria, 22nd Army Corps
1865
February 16	Colonel Alexander mustered out. Colonel William Graham took command of the regiment
February 28	The 1st District of Columbia Infantry Regiment was consolidated into the 2nd.
September 12	The 2nd District of Columbia Infantry mustered out