| Source: The Earlier Years of the Drug and Allied Trades in the Mississippi Valley, by A.C. Meyer (published in 1948) Location: St.L / 338.4 / M575 | |
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| Last Name: | Thumser |
| First Name: | John |
| Middle Name: | C. |
| Page: | 116-117 |
| Remarks: | listed as committee member for annual ball of the St. Louis Drug Clerks Society |
