
| Earl H. Cosman | |
| B: | 8 Jun 1914 |
| D: | Sep 1981 |
| Mount Prospect, Cook County, Illinois, USA | |
| Grace E. Prellberg | |
| B: | 10 Aug 1915 |
| Des Plaines, Cook County, Illinois, USA | |
| D: | 19 Dec 2002 |
| Arlington Heights, Cook County, Illinois, USA | |
| Paul F. Cosman | |
| B: | 30 Jul 1919 |
| D: | 12 Jun 1988 |
| Edgerton, Rock County, Wisconsin, USA | |
| Harvey Heinrich Cosman | |
| B: | 12 May 1890 |
| Elk Grove, Cook County, Illinois, USA | |
| D: | 12 Sep 1942 |
| Mount Prospect, Cook County, Illinois, USA | |
| Sarah Gathman | |
| B: | Nov 1891 |
| Schaumburg, Cook County, Illinois, USA | |
| M: | 23 Mar 1913 |
| Bensenville, DuPage County, Illinois, USA | |
| D: | Jan 1957 |
| Arlington Heights, Cook County, Illinois, USA | |
| Frank Carl Cosman | |
| B: | 22 Apr 1891 |
| Elk Grove, Cook County, Illinois, USA | |
| D: | 2 Mar 1892 |
| Elk Grove, Cook County, Illinois, USA | |
| 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 | |
| Charles Harp | |
| D: | Bef Dec 2004 |
| Stacy Ham | |
| D: | Bef 2004 |
| Nancy Cosman | |
| B: | 29 Oct 1947 |
| D: | Nov 1992 |
| Algonquin, McHenry County, Illinois, USA | |
| Joe W. Ham | |
| B: | 14 Jan 1943 |
| D: | Nov 1943 |
| Algonquin, McHenry County, Illinois, USA | |
| Elmer H. Cosman | |
| B: | 24 Nov 1921 |
| Elk Grove, Cook County, Illinois, USA | |
| D: | 24 Dec 2004 |
| Mesa, Maricopa County, Arizona, USA | |
| Josephine C. Smith | |
| M: | 26 Nov 1942 |
| Itasca, DuPage County, Illinois, USA | |
| Henry Bernhardt Cosman | |
| B: | 19 Sep 1894 |
| Elk Grove, Cook County, Illinois, USA | |
| D: | Mar 1969 |
| Roselle, DuPage County, Illinois, USA | |
| Lillian Bierman | |
| B: | Jun 1895 |
| Elk Grove, Cook County, Illinois, USA | |
| M: | 28 Feb 1920 |
| Bensenville, DuPage County, Illinois, USA | |
| D: | Aug 1968 |
| Roselle, DuPage County, Illinois, USA | |
| Ida Cosman | |
| B: | 18 Dec 1896 |
| Elk Grove, Cook County, Illinois, USA | |
| Arthur Cosman | |
| B: | 27 Mar 1898 |
| Elk Grove, Cook County, Illinois, USA | |
| D: | Sep 1977 |
| California, USA | |
| Elizabeth Jorgensen | |
| M: | 28 Jun 1924 |
| Alfred L. Cosman | |
| B: | 9 Nov 1900 |
| Elk Grove, Cook County, Illinois, USA | |
| D: | 6 Nov 1967 |
| Elk Grove, Cook County, Illinois, USA | |
| Inger M. Jorgensen | |
| B: | 27 Oct 1904 |
| M: | 24 May 1924 |
| Bensenville, DuPage County, Illinois, USA | |
| D: | Nov 1977 |
| Elk Grove, Cook County, Illinois, USA | |
| Clarence Cosman | |
| B: | 1906 |
| Elk Grove, Cook County, Illinois, USA | |
| D: | 1949 |
| William E. Cosman | |
| B: | 1 Mar 1910 |
| Elk Grove, Cook County, Illinois, USA | |
| D: | 20 Apr 1997 |
| Naples, Collier County, Florida, USA | |
| Nora H. Smith | |
| B: | 7 Nov 1912 |
| D: | 19 Aug 1998 |
| Fort Myers, Lee County, Florida, USA | |
|
| Dena Scharringhausen | |
| B: | 12 Mar 1869 |
| Elk Grove, Cook County, Illinois, USA | |
| D: | 27 Nov 1947 |
| Elk Grove, Cook County, Illinois, USA | |
| Ernst Cosman | |
| B: | 26 May 1865 |
| Leyden, Cook County, Illinois, USA | |
| D: | 6 Mar 1947 |
| Elk Grove, Cook County, Illinois, USA | |