US MARINE CORPS
John E Koniszewski
August 29, 1921—December 30, 2003
2ND LT
Life Timeline
82 years1921
Born
August 29, 1921
US MARINE CORPS
Service Record
World War II
World War II
Conflict
2ND LT
2003
Passed Away
December 30, 2003
Service Record
Verified fields from cemetery source data.
Branch
US MARINE CORPS
Rank
2ND LT
War / Conflict
World War II
Sourced from official cemetery data; last updated May 30, 2026.Learn more