US NAVY
John Francis McMahon
May 4, 1906—March 23, 1980
S1
Life Timeline
73 years1906
Born
May 4, 1906
US NAVY
Service Record
World War II
World War II
Conflict
S1
1980
Passed Away
March 23, 1980
Service Record
Verified fields from cemetery source data.
Branch
US NAVY
Rank
S1
War / Conflict
World War II
Sourced from official cemetery data; last updated May 30, 2026.Learn more