| Source: Southwestern Telephone News (St. Louis: Southwestern Bell Telephone Co.), September 1914-December 1916 Location: St.L. / 05 / So89 | |
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| Last Name: | Zimmerman |
| First Name: | Richard |
| Volume: | 2 |
| Issue: | 4 |
| Date of Publication: | December 1915 |
| Page: | 111 |
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