| Source: World War I: Biography and Service Records:
Persons Who Enlisted in St. Louis City and
County. Addenda: Those Who Died in Service Location: Reading room / St. Louis shelves | |
 | |
| Last Name: | Classen |
| First Name: | Maurice |
| Middle Name: | Douglas |
| Illustration: | No |
| Rank: | 2nd Class Yeoman |
| Death Year: | 1918 |
| Birth Year: | 1892 |
