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| Otto E. DUEMMEL Abt 1900-1964 |
| Otto E. DUEMMEL | |
| B: | Abt 1900 |
| IL | |
| D: | Apr 1964 |
| Leroy William DUEMMEL Abt 1904-1947 |
| Leroy William DUEMMEL | |
| B: | Abt 1904 |
| D: | 15 Jun 1947 |
| Chicago, Cook County, IL | |
 | Louise SCHMIDT Abt 1881-1965 |
| Louise SCHMIDT | |
| B: | Abt 1881 |
| Germany | |
| D: | Jan 1965 |
| Chicago, Cook County, IL | |
| Wilhelm C. DUEMMEL Abt 1873-1956 |
| Wilhelm C. DUEMMEL | |
| B: | Abt 1873 |
| Germany | |
| M: | 14 Jan 1899 |
| Chicago, Cook County, IL | |
| D: | Apr 1956 |
| Chicago, Cook County, IL | |