| Source: "Report of the Industrial Bureau of the Industrial Club of St. Louis," 1928-1935. Some issues are titled "Southwest-Southeast Business" and "Saint Louis Business." Location: St.L. / 607 / In2r | |
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| Last Name: | Pickeral |
| First Name: | Ray |
| Middle Name: | E. |
| Last Name, Alternate Spelling: | Pickrel |
| Corporate Name: | Pumicite Company |
| Report Number: | 1 |
| Date: | January 10, 1928 |
| Page: | 21 |
