William C Koos
William C Koos
U.S. Army
Private
| City of Entry | Walnut | |
| Conflict/Time Period | World War I | Service Location | Organization(s) | Separation Status | Killed In Action (KIA) | Specialty/Rate | Specific Jobs |
| City of Entry | Walnut | |
| Conflict/Time Period | World War I | Service Location | Organization(s) | Separation Status | Killed In Action (KIA) | Specialty/Rate | Specific Jobs |