U.S. Army
Duane G Haack
August 13, 1940—April 25, 2004
LTC
Life Timeline
63 years1940
Born
August 13, 1940
US ARMY
Service Record
Vietnam War
Vietnam War
Conflict
LTC
2004
Passed Away
April 25, 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