US NAVY
Denis J O'Brien
May 29, 1937—May 9, 2002
LT
Life Timeline
64 years1937
Born
May 29, 1937
US NAVY
Service Record
LT
2002
Passed Away
May 9, 2002
Service Record
Verified fields from cemetery source data.
Branch
US NAVY
Rank
LT
Sourced from official cemetery data; last updated May 30, 2026.Learn more