U.S. Army
Peter J Osterhaus
January 4, 1823—January 2, 1917
MAJ GEN
Life Timeline
93 years1823
Born
January 4, 1823
US ARMY
Service Record
Civil War
Civil War
Conflict
MAJ GEN
1917
Passed Away
January 2, 1917
Service Record
Verified fields from cemetery source data.
Branch
US ARMY
Rank
MAJ GEN
War / Conflict
Civil War
Sourced from official cemetery data; last updated May 30, 2026.Learn more