| Source: St. Louis Traffic Club News, June 1951–June 1954 Location: St.L. / 05 / Sa24t | |
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| Last Name: | Zumsteg |
| First Name: | Henry |
| Volume: | 2 |
| Issue: | 5 |
| Date of Publication: | May 1952 |
| Page: | 4 |
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| Source: St. Louis Traffic Club News, June 1951–June 1954 Location: St.L. / 05 / Sa24t | |
| |
| Last Name: | Zumsteg |
| First Name: | Henry |
| Volume: | 2 |
| Issue: | 5 |
| Date of Publication: | May 1952 |
| Page: | 4 |