| Source: The Codasco (St. Louis Country Day School yearbook), 1922-1934 (excepting 1923) Location: St.L. / 373 / Sa2co | |
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| Last Name: | Ehrenfest |
| First Name: | Fritz |
| Middle Name: | Hugo |
| Photograph: | yes |
| Publication Date: | 1928 |
| Page: | 36 |
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