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| Father | Male Hyrum Ernest Demke |
| Born | 15 Jun 1910 | Salt Lake City, Salt Lake, Utah, United States |
| Died | 20 May 1957 | Salt Lake City, Salt Lake, Utah, United States |
| Buried | ||
| Married | 9 Jul 1934 | Salt Lake City, Salt Lake, Utah, United States |
| Father | Ernst Franz Karl August Demke | F3 Group Sheet | |
| Mother | Meta Mathilde Margareta Zigahn | F3 Group Sheet | |
| Mother | Female Eva Elizabeth Graeske |
| Born | 15 Apr 1915 | Salt Lake City, Salt Lake, Utah, United States |
| Died | 23 May 2009 | |
| Buried | ||
| Father | ||
| Mother | ||