| Source: Jahres-Buch, Year Book / by Tower Grove Turnverein, 1906-1907 Location: Oversize / St.L. / 613.7 / T737j | |
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| Last Name: | Boettger |
| First Name: | Otto |
| Middle Name: | H. |
| Portrait: | yes |
| Page: | 5, 7-9 |
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