| Source: Who's Who in the Midwest: A Biographical Dictionary of Noteworthy Men and Women of the Central and Midwestern States (Chicago, Illinois: The A. N. Marquis Company, 1949) Location: Reading Room / 920 / W62m | |
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| Last Name: | Soper |
| First Name: | Mary |
| Maiden Name: | Holcombe |
| Remarks: | Mentioned in a biographical sketch |
| Page: | 1168 |
