U.S. Army
John S Jancosek
April 22, 1922—June 10, 1999
PVT
Life Timeline
77 years1922
Born
April 22, 1922
US ARMY
Service Record
World War II
World War II
Conflict
PVT
1999
Passed Away
June 10, 1999
Service Record
Verified fields from cemetery source data.
Branch
US ARMY
Rank
PVT
War / Conflict
World War II
Sourced from official cemetery data; last updated May 30, 2026.Learn more