Local History & Genealogy Center, Warren-Trumbull County Public Library
Note
From back of card: Corporal Karl. L. Pfeiffer. Born in Columbus Ohio Mar. 24th 1890. Entered the service May 26th 1917. Company I 166th Regiment 42nd Division. Rank Corporal. Honorably discharged May 17th 1919.
Gift of the the Sutliff Museum.