US MARINE CORPS
Robert Steven O'Sullivan
October 17, 1941—November 3, 2017
SGT
Life Timeline
76 years1941
Born
October 17, 1941
US MARINE CORPS
Service Record
Vietnam War
Vietnam War
Conflict
SGT
2017
Passed Away
November 3, 2017
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