U.S. Army
Mack K Horner
September 21, 1896—May 16, 1973
SGT
Life Timeline
76 years1896
Born
September 21, 1896
US ARMY
Service Record
World War I
World War I
Conflict
SGT
1973
Passed Away
May 16, 1973
Service Record
Verified fields from cemetery source data.
Branch
US ARMY
Rank
SGT
War / Conflict
World War I
Sourced from official cemetery data; last updated May 30, 2026.Learn more