1833 - 1920 (86 years)
| William Thurston Gwynne, ^ | |
| B: | 18 Apr 1909 |
| NY | |
| D: | 20 Sep 1996 |
| St. James, Smithtown, Suffolk, NY | |
| Alan Guy Brown, ^ | |
| B: | 1939 |
| D: | 15 Jan 1942 |
| Port Jefferson (Mather Hospital), Brookhaven, Suffolk, NY | |
| Marjorie Gwynne, ^ | |
| B: | Abt 1912 |
| NY | |
| D: | Yes, date unknown |
| Albert Brown | |
| B: | Abt 1910 |
| NY | |
| D: | Yes, date unknown |
| William H. Logan Gwinn | |
| B: | 10 Feb 1876 |
| Manhattan, New York City, New York, United States | |
| D: | 15 Apr 1912 |
| at sea | |
| Florence Rohde, ^ | |
| B: | 8 Nov 1879 |
| NY | |
| M: | Abt 1907 |
| D: | 1952 |
| {Brookhaven, Brookhaven, Suffolk, NY} | |
| Cornelius James Gwynne | |
| B: | 3 Mar 1874 |
| Manhattan, New York City, New York, United States | |
| D: | Yes, date unknown |
| Lillie Rogers Henderson | |
| B: | 5 Oct 1873 |
| New York City, New York, United States | |
| M: | 12 Jul 1899 |
| Manhattan, New York, New York | |
| Emily Gwynne | |
| B: | Abt 1878 |
| NY | |
| D: | Yes, date unknown |
| Alexander Gwynne | |
| B: | Abt 1879 |
| D: | Yes, date unknown |
| Charles Gwynne | |
| B: | Dec 1885 |
| NY | |
| D: | Yes, date unknown |
| Olive Gwynne | |
| B: | Aug 1888 |
| NY | |
| D: | Yes, date unknown |
| Elizabeth Gwynne | |
| B: | Nov 1891 |
| NY | |
| D: | Yes, date unknown |
| Alexander George Gwinn | |
| B: | 31 Oct 1833 |
| Massachusetts, United States | |
| D: | 13 Jan 1920 |
| Kingston, Ulster, New York, United States | |
| Emilie R. Bishop | |
| B: | 16 Jun 1849 |
| Olive, Ulster, New York, United States | |
| M: | Abt 1870 |
| D: | 26 Feb 1921 |
| Kingston, Ulster, New York, United States | |
