US COAST GUARD
John Louis Mongreig
June 25, 1925—December 29, 2007
SM3
Life Timeline
82 years1925
Born
June 25, 1925
US COAST GUARD
Service Record
World War II
World War II
Conflict
SM3
2007
Passed Away
December 29, 2007
Service Record
Verified fields from cemetery source data.
Branch
US COAST GUARD
Rank
SM3
War / Conflict
World War II
Sourced from official cemetery data; last updated May 30, 2026.Learn more