| 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: | Sleyster |
| First Name: | Irvin |
| Middle Name: | W. |
| Illustration: | Yes |
| Rank: | 2nd Lieut. |
| Birth Year: | 1892 |
