| Source: Airscoop (St. Louis, Mo.: McDonnell Aircraft Corporation), 1949-1969 Location: Oversize / St.L. / 05 / M146 | |
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| First Name: | William |
| Middle Name: | E. |
| Last Name: | Trapnell |
| Death Date: | 1961 |
| Volume: | XXI |
| Issue: | 4 |
| Date of Publication: | April, 1962 |
| Page: | 4 |
