| Source: Missouri Pacific Lines Magazine, 1943-1965 (incomplete run) Location: St.L. / 05 / M69p and oversize / St.L. / 05 / M69p | |
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| Last Name: | Walingford |
| First Name: | Principia |
| Last Name, Alternate Spelling: | Wallingford |
| Maiden Name: | Burch |
| Volume: | 23 |
| Issue: | 7 |
| Date of Publication: | January 1950 |
| Page: | 33 |
