| Source: St. Louis, the Fourth City: Pictorial and Biographical, Deluxe Supplement (St. Louis: S.J. Clarke, 1912) Location: St.L. / 9 / St4 / supp | |
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| Last Name: | Hagerman |
| First Name: | Margaret |
| Middle Name: | M. |
| Maiden Name: | Walker |
| Volume: | 2 |
| Page: | 142-145 |
