| Source: World War I: Biography and Service Records:
Persons Who Enlisted in St. Louis City and
County Location: Reading room / St. Louis shelves | |
 | |
| Last Name: | Klein |
| First Name: | O. |
| Middle Name: | J. |
| Illustration: | No |
| Address: | 5269 Vernon Ave. |
| Rank: | Sergeant |
| Birth Year: | 1889 |
