U.S. Army
John G Sierra
May 22, 1912—April 28, 1999
Life Timeline
86 years1912
Born
May 22, 1912
US ARMY
Service Record
World War II
World War II
Conflict
1999
Passed Away
April 28, 1999
Service Record
Verified fields from cemetery source data.
Branch
US ARMY
War / Conflict
World War II
Sourced from official cemetery data; last updated May 30, 2026.Learn more