| Source: Directory of Alumni, Western Military Academy (Alton, Illinois), Third Edition, May 15, 1939 Location: IL / 379.17 / W527d | |
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| Last Name: | Petersen |
| First Name: | R. |
| Middle Name: | O. |
| Address: | 2814 Lyon St. |
| Class Year: | 1928 |
| Page: | 14, 66 |
| Remarks: | in alphabetical list of graduates |
