1873 - 1915 (41 years)
| Jacob Jansen, Jr | |
| B: | 5 Sep 1924 |
| New York, New York | |
| D: | 6 Apr 2005 |
| Arlene Joyce Rockwell, ^ | |
| B: | 25 May 1927 |
| Patchogue, Suffolk, New York, Unites States | |
| D: | 27 Oct 1998 |
| Alexandria Piekart | |
| B: | 9 Jun 1904 |
| Rotterdam, South Holland, Netherlands | |
| D: | 13 Mar 1952 |
| New York, United States | |
| Jacob Jansen, Sr | |
| B: | 7 May 1905 |
| New York, United States | |
| M: | 27 Oct 1923 |
| Manhattan, New York City, New York, United States | |
| D: | 31 Dec 1981 |
| Patchogue, Brookhaven, Suffolk, New York, United States | |
| Alexander Piekart | |
| B: | 5 Oct 1873 |
| Vlissingen, Zeeland, Netherlands | |
| D: | 31 Mar 1915 |
| Manhattan, New York, New York, USA | |
| Johanna Cornelia Straatman | |
| B: | 11 Dec 1879 |
| Rotterdam, Zuid-Holland, Netherlands | |
