U.S. Army
Richard D O'Neill
CO D 19 WIS INF
Life Timeline
Birth
Born
US ARMY
Service Record
Civil War
Civil War
Conflict
CO D 19 WIS INF
Death
Passed Away
Service Record
Verified fields from cemetery source data.
Branch
US ARMY
Rank
CO D 19 WIS INF
War / Conflict
Civil War
Sourced from official cemetery data; last updated May 30, 2026.Learn more