| 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: | Blackmer |
| First Name: | Percy |
| Middle Name: | R. |
| Illustration: | No |
| Address: | 450 Sherwood Drive |
| Rank: | Lieutenant |
| Birth Year: | 1899 |
