1896 - 1973 (77 år)
 | James Mark Ostewig 1945-1956 |
| James Mark Ostewig | |
| F: | 1945 |
| Amboy, Lee County, Illinois, USA | |
| D: | 8 Feb 1956 |
| Tobité, Santa Cruz, Bolivia | |
 | James Marland Ostewig 1922-2018 |
| James Marland Ostewig | |
| F: | 7 Sep 1922 |
| Chicago, Cook County, Illinois, USA | |
| D: | 2018 |
| Sherbrooke, Guysborough County, Nova Scotia, Canada | |
 | Helen Marie Peterson 1918-1961 |
| Helen Marie Peterson | |
| F: | 6 Sep 1918 |
| Cherokee County, Iowa, USA | |
| D: | 1961 |
| Black Hawk County, Iowa, USA | |
 | Ronald Blaine Ostewig 1926-1990 |
| Ronald Blaine Ostewig | |
| F: | 24 Apr 1926 |
| Sublette, Lee County, Illinois, USA | |
| D: | 31 Okt 1990 |
| Mendota, LaSalle County, Illinois, USA | |
 | Dolores Regina Ostewig 1928-2005 |
| Dolores Regina Ostewig | |
| F: | 30 Jun 1928 |
| Sublette, Lee County, Illinois, USA | |
| D: | 4 Jul 2005 |
| Huntington, Cabell County, West Virginia, USA | |
| Evelyn July 1896-1973 |
| Evelyn July | |
| F: | 14 Maj 1896 |
| Shaw Station, Lee County, Illinois, USA | |
| D: | 15 Jun 1973 |
| Amboy, Lee County, Illinois, USA | |
 | Orville Ostewig 1891-1934 |
| Orville Ostewig | |
| F: | 15 Feb 1891 |
| Steward, Lee County, Illinois, USA | |
| V: | 26 Nov 1921 |
| Kane County, Illinois, USA | |
| D: | 3 Okt 1934 |
| Cook County, Illinois, USA | |
