US AIR FORCE
John Samuel Sincock
July 16, 1941—May 31, 1999
CAPT
Life Timeline
57 years1941
Born
July 16, 1941
US AIR FORCE
Service Record
Vietnam War
Vietnam War
Conflict
CAPT
1999
Passed Away
May 31, 1999
Service Record
Verified fields from cemetery source data.
Branch
US AIR FORCE
Rank
CAPT
War / Conflict
Vietnam War
Sourced from official cemetery data; last updated May 30, 2026.Learn more