William P O'brien
1877 – 1947
- Born
- July 5, 1877
- Died
- June 28, 1947
- Buried at
- Arlington National CemeteryArlington County, VA
- Plot
- Section 18, Site 1646-J
- Relationship
- Data Under Review
Map shows the cemetery location; precise grave position may vary.
Source: Office of Army Cemeteries / U.S. Army — Arlington National Cemetery · US-PD. Suggest a correction or removal.