1889 - 1959 (70 years)
| Hildegard Stevenson | |
| B: | 6 Aug 1912 |
| D: | 6 Jun 2010 |
| Frederick Gilbert Bourne Hard, < | |
| B: | 10 Oct 1910 |
| Sayville, Suffolk, New York, United States | |
| M: | 1933 |
| D: | 1 Jul 2007 |
| Stamford, Fairfield, Connecticut, United States | |
| Hildegarde Kobbe | |
| B: | 18 Jan 1889 |
| Millburn, Essex, New Jersey, United States | |
| D: | 10 Jun 1959 |
| Islip, Suffolk, New York, United States | |
| Joseph Hutchinson Stevenson | |
| B: | 21 Oct 1886 |
| New York, United States | |
| D: | Yes, date unknown |
