U.S. Army
John Hammann
June 27, 1944—May 8, 2004
LTC
Life Timeline
59 years1944
Born
June 27, 1944
US ARMY
Service Record
Vietnam War
Vietnam War
Conflict
LTC
2004
Passed Away
May 8, 2004
Service Record
Verified fields from cemetery source data.
Branch
US ARMY
Rank
LTC
War / Conflict
Vietnam War
Sourced from official cemetery data; last updated May 30, 2026.Learn more