| Source: The Voice of Emerson, 1944-1963 (incomplete run) Location: St.L. / 05 / V57 / flat (preservation copies) | |
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| Last Name: | Zweifel |
| First Name: | Oscar |
| Portrait: | yes |
| Volume: | 25 |
| Issue: | 5 |
| Date of Publication: | October 12, 1962 |
| Page: | 1-2 |
| Remarks: | in list of employees marking 30 years of service |
