U.S. Army
John Henry Hamann
March 17, 1890—April 15, 1957
CAPT
Life Timeline
67 years1890
Born
March 17, 1890
US ARMY
Service Record
World War II
World War II
Conflict
CAPT
1957
Passed Away
April 15, 1957
Service Record
Verified fields from cemetery source data.
Branch
US ARMY
Rank
CAPT
War / Conflict
World War II
Sourced from official cemetery data; last updated May 30, 2026.Learn more