
| Lillian Cosman | |
| D: | Bef 2003 |
| Marvin Cosman | |
| B: | 31 Mar 1925 |
| Chicago, Cook County, Illinois, USA | |
| D: | 25 Jun 2003 |
| Aurora, Kane County, Illinois, USA | |
|
| Albert Wilhelm Ernest Cosman | |
| B: | 2 Dec 1892 |
| Elk Grove, Cook County, Illinois, USA | |
| D: | Mar 1974 |
| Palatine, Cook County, Illinois, USA | |
| Hulda Schwantz | |
| B: | 24 Sep 1893 |
| M: | 9 May 1915 |
| Bensenville, DuPage County, Illinois, USA | |
| D: | Jun 1986 |
| Palatine, Cook County, Illinois, USA | |