The 158th Pennsylvania Infantry Regiment lost 45 men to disease during the Civil War.

November 1 Organized at Chambersburg and ordered to Suffolk, Va. Duty at Suffolk, Va. attached to Spinola’s Brigade, Division at Suffolk, 7th Corps, Dept. of Virginia
December 28-January 1 Moved to New Berne, N. C. and duty there attached to 1st Brigade, 5th Division, 18th Corps, Dept. of North Carolina
March 6-10 Expedition from New Berne to Trenton, Pollocksville, Young’s Cross Roads and Swansborough
April 7-10 Expedition to relief of Little Washington, N. C
April 9 Blount’s Creek
April 13-21 Expedition to Swift Creek Village
April 19 Big Swift Creek
May Assigned to District of the Pamlico, Dept. of North Carolina
June Ordered to Fortress Monroe, Va. and assigned to Spinola’s Brigade, 7th Corps, Dept. of Virginia
July 1-7 Dix’s Peninsula Campaign
July 7-9 Moved to Harper’s Ferry
June 10 Moved to Boonsboro, Md.
July 11 Reported to Gen. Meade
July 11-24 Pursuit of Lee
August 3 Ordered to Harrisburg, Pa.
August 12 Mustered out