| Source: Echo (Webster Groves High School yearbook), 1931 and 1932 Location: MO / 379.17 / W391 | |
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| Last Name: | Prehn |
| First Name: | William |
| Photograph: | Yes |
| Publication Year: | 1932 |
| Page: | 42, 44, 67, 68, 72, 73, 164 |
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