US MARINE CORPS
Theodore W Horstmann
March 25, 1917—July 10, 1988
MAJOR
Life Timeline
71 years1917
Born
March 25, 1917
US MARINE CORPS
Service Record
World War II
World War II
Conflict
MAJOR
1988
Passed Away
July 10, 1988
Service Record
Verified fields from cemetery source data.
Branch
US MARINE CORPS
Rank
MAJOR
War / Conflict
World War II
Sourced from official cemetery data; last updated May 30, 2026.Learn more