| Source: Activities of Base Hospital No. 21 by Borden S. Veeder, 1919 Location: MO / 9.9 / B29 | |
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| Last Name: | Mercer |
| First Name: | Alvin |
| Page: | 27 |
| Remarks: | in list of enlisted personnel |
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| Source: Activities of Base Hospital No. 21 by Borden S. Veeder, 1919 Location: MO / 9.9 / B29 | |
| |
| Last Name: | Mercer |
| First Name: | Alvin |
| Page: | 27 |
| Remarks: | in list of enlisted personnel |