| 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: | Grefenkamp |
| First Name: | George |
| Middle Name: | J. |
| Illustration: | No |
| Address: | 2165 Russell |
| Rank: | Ship's Quartermaster |
| Birth Year: | 1900 |
