1877 - 1939 (62 years)(Notes: You may have to scroll down or right to see chart.)
| Clarence E. Gehrke 1902-1988 |
| Clarence E. Gehrke | |
| B: | 23 Aug 1902 |
| Chicago, Cook, Illinois, USA | |
| D: | 23 Feb 1988 |
| Manatee, Florida, USA | |
Helen G. Henderick 1902-1974 |
| Helen G. Henderick | |
| B: | 15 Apr 1902 |
| D: | 23 Sep 1974 |
|
| Richard Hermann August Gehrke 1877-1939 |
| Richard Hermann August Gehrke | |
| B: | 1 Jan 1877 |
| Berlin, Brandenburg, Germany | |
| D: | 19 Nov 1939 |
| Ottilie Wolff 1879-1944 |
| Ottilie Wolff | |
| B: | 7 Nov 1879 |
| D: | 27 Apr 1944 |
| Chicago Ridge, Cook, Illinois, USA | |
