US MARINE CORPS
John J Pfeiffer
March 23, 1942—March 19, 2021
SGT
Life Timeline
78 years1942
Born
March 23, 1942
US MARINE CORPS
Service Record
Vietnam War
Vietnam War
Conflict
SGT
2021
Passed Away
March 19, 2021
Service Record
Verified fields from cemetery source data.
Branch
US MARINE CORPS
Rank
SGT
War / Conflict
Vietnam War
Sourced from official cemetery data; last updated May 30, 2026.Learn more