| 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: | Koenig |
| First Name: | O. |
| Middle Name: | M. |
| Title: | M.D. |
| Illustration: | Yes |
| Address: | 5721 Enright; 1243 Blackstone Ave. |
| Rank: | 1st Lieut. |
| Birth Year: | 1874 |
