First Battalion (Companies G & H) in the East

The 19th United States Infantry Regiment lost 3 officers and 55 enlisted men killed and mortally wounded and 2 officers and 124 enlisted men to disease in the Civil War. Most of its service was in the Western Theater, but Comanies G and H were detached in east for part of the war.

1861
May 4 Organized by direction of the President. Regiment organized at Indianapolis, Indiana.
July 29 Organization confirmed by Act of Congress
October Ordered to Kentucky
1862
May 1st Battalion (Companies G and H) ordered from Indianapolis, Ind., to Washington, D.C. and attached to Sturgis’ Command, Military District of Washington for Provost guard duty in the Defenses of Washington. Company G was commanded by Captain Edmund L. Smith and Company H by Captain Henry S. Welton
September 6-22 Maryland Campaign. Assigned to 2nd Brigade, 2nd Division, 5th Army Corps, Army of the Potomac. Company G was attached to the 17th United States Infantry and Company H to the Provost Guard of Army Headquarters.
September 16-17
Battle of Antietam
October 29-November 19 Movement to Falmouth, Va.
December 12-15 Battle of Fredericksburg
1863
January Rejoined Regiment in Dept. of the Cumberland