US NAVY
John Robert Mahon
June 19, 1919—October 27, 1996
LCDR
Life Timeline
77 years1919
Born
June 19, 1919
US NAVY
Service Record
World War II
World War II
Conflict
LCDR
1996
Passed Away
October 27, 1996
Service Record
Verified fields from cemetery source data.
Branch
US NAVY
Rank
LCDR
War / Conflict
World War II
Sourced from official cemetery data; last updated May 30, 2026.Learn more