Helene Auguste Bertha Helen Knack
1887 -
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 | - stillborn - Prochnow Bef 1908-Bef 1908 |
| - stillborn - Prochnow | |
| B: | Bef 1 Mar 1908 |
| Chicago, Cook, Illinois, USA | |
| D: | Bef 1 Mar 1908 |
| Chicago, Cook, Illinois, USA | |
Raymond Albert Fridrich Prochnow 1909-1966 |
| Raymond Albert Fridrich Prochnow | |
| B: | 2 Jul 1909 |
| Wilmette, Cook, Illinois, USA | |
| D: | Aug 1966 |
 | Milbert Samuel Prochnow 1913-1963 |
| Milbert Samuel Prochnow | |
| B: | 13 Apr 1913 |
| Wilmette, Cook, Illinois, USA | |
| D: | 6 Dec 1963 |
|
| Helene Auguste Bertha Helen Knack | |
| B: | 10 Apr 1887 |
| Chicago, Cook, Illinois, USA | |
| Albert Prochnow 1880- |
| Albert Prochnow | |
| B: | Jun 1880 |
| Illinois | |
| M: | 24 Aug 1907 |
| Chicago, Cook, Illinois, USA | |