| Source: The City of Saint Louis of To-Day: Its Progress and Prospects (Saint Louis: J. Osmun Yeakle & Co., 1889) Location: St.L. / 9.17 / Y3 | |
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| Last Name: | Singer |
| First Name: | Albert |
| Page: | 204-205 |
| Remarks: | listed as secretary of Mining Stock Exchange |
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