1856 - 1923 (67 years)
| Theodore Hollmann | |
| B: | Abt 1949 |
| D: | 21 Jan 2018 |
| Bellport, Brookhaven, Suffolk, New York, United States | |
| Irene Elizabeth Westervelt | |
| B: | 28 Jun 1925 |
| Brooklyn, New York City, New York, USA | |
| D: | 30 Aug 2018 |
| Bayport, Islip, Suffolk, New York, United States | |
| Theodore Michael Hollmann | |
| B: | 16 Sep 1924 |
| Patchogue, Brookhaven, Suffolk, New York, United States | |
| M: | 10 Sep 1955 |
| Brookhaven, Suffolk, New York, United States | |
| D: | 27 Nov 1982 |
| Richard Lawrence Westervelt | |
| B: | 1 May 1941 |
| Bayport, Islip, Suffolk, New York, United States | |
| D: | Oct 1995 |
| Blue Point, Brookhaven, Suffolk, New York, United States | |
| William P. Westervelt, Jr | |
| B: | 1930 |
| Bayport, Islip, Suffolk, New York, United States | |
| D: | 16 Apr 1976 |
| East Patchogue, Brookhaven, Suffolk, New York, United States | |
| Helen Westervelt | |
| B: | 11 Apr 1924 |
| Brooklyn, Kings, New York, United States | |
| D: | 27 Apr 1970 |
| Nassau, Nassau, Rensselaer, New York, United States | |
| William Paul Westervelt | |
| B: | 1 Dec 1894 |
| Hoboken, Hudson, New Jersey, United States | |
| D: | 12 Feb 1972 |
| Suffolk, New York, United States | |
| Irene Libby Hauschild | |
| B: | 15 May 1899 |
| New York, United States | |
| D: | 18 Jun 1979 |
| Bayport, Islip, Suffolk, New York, United States | |
| Alonzo Christie Westervelt | |
| B: | 27 Jan 1856 |
| Spring Valley, Rockland, New York, United States | |
| D: | 14 May 1923 |
| Flatlands, Kings, New York, United States | |
| Catherine Josephine Mackin | |
| B: | 1858 |
| New York City, New York, United States | |
