| Source: "Missourians in the European War" scrapbooks, 1917-1967 (bulk 1917-1920) (11 volumes) Location: Reading Room / MO / 9.9 / M69m | |
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| Last Name: | McMahon |
| First Name: | J. |
| Middle Name: | J. |
| Rank: | Captain |
| Page: | 15, 16, 44, 71, 89, 90, 95, 120 |
| Volume: | 4 |
