| Source: The Engineers' Club of St. Louis Year Book, 1948 Location: St.L. / 620.6 / As78y | |
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| Last Name: | Knoll |
| First Name: | Rudolph |
| Middle Name: | J. |
| Photograph: | Yes |
| Address: | 3623A Fillmore St. |
| Page: | 113 |
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