| Source: Washington University Alumni Bulletin, 1931-1956 Location: St.L. / 378 / W27ab | |
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| First Name: | Duff |
| Middle Name: | S. |
| Title: | Dr. |
| Last Name: | Allen |
| Class Year: | 1919 |
| Volume: | 18 |
| Issue: | 3 |
| Date of Publication: | February 1949 |
| Page: | 30 |
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