The 173rd Pennsylvania Infantry Regiment lost 19 enlisted men to disease during the Civil War.

1862
October and November Organized at Harrisburg under Colonel Daniel Nagle, Lt. Colonel Zaccur P. Boyer and Major Grant Weidman
November 30 Left State for Washington, D.C. then moved to Suffolk and Norfolk, Va.
December Guard, outpost and provost duty at Norfolk, Va. attached to District of Norfolk, Va., 7th Corps, Dept. of Virginia
1863
July 9 Ordered to Washington, D. C. then moved to Frederick, Md. and attached to 1st Brigade, 2nd Division, 11th Army Corps, Army of the Potomac
July 12-24 Pursuit of Lee
July 25 Guard duty on Orange & Alexandria Railroad
August 13 Ordered to Harrisburg
August 18 Mustered out