| Source: Portraits of Members of Armed Forces from St.
Louis City and County Killed in World War I Location: Reading room | |
 | |
| Last Name: | Arnold |
| First Name: | Robert |
| Middle Name: | F. |
| Illustration: | Yes |
| Rank: | Lieutenant |
| Birth Year: | 1892 |
| Death Year: | 1918 |
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