1891 - 1980 (88 years)
| Helena Josephine "Helene" or "Helen" Ockers | |
| B: | 1915 |
| West Sayville, Islip, Suffolk, New York, United States | |
| D: | Jul 1983 |
| Theodore Bernard Brandsma | |
| B: | 25 Sep 1908 |
| Maxwell, Colfax, New Mexico, United States | |
| D: | 26 Jul 1983 |
| Denver, Colorado, United States | |
|
| Jannetje Lydia "Jennette" Slager | |
| B: | 13 Oct 1891 |
| Yerseke, Zeeland, Netherlands | |
| D: | 13 Mar 1980 |
| Denver, Colorado, United States | |
| Fredrick John Ockers | |
| B: | 16 Dec 1889 |
| Bruinisse, Zeeland, Netherlands | |
| M: | 30 Oct 1912 |
| Suffolk, New York, United States | |
| D: | Jan 1940 |
| Denver, Colorado, United States | |
