U.S. Army
Jack Henry Shannahan
January 7, 1918—October 7, 1999
SGT
Life Timeline
81 years1918
Born
January 7, 1918
US ARMY
Service Record
World War II
World War II
Conflict
SGT
1999
Passed Away
October 7, 1999
Service Record
Verified fields from cemetery source data.
Branch
US ARMY
Rank
SGT
War / Conflict
World War II
Sourced from official cemetery data; last updated May 30, 2026.Learn more