- Abt 1874
| Gertrude O'Brien | |
| B: | 13 Sep 1893 |
| Brooklyn, Kings, New York, United States | |
| D: | 15 Oct 1959 |
| New Orleans, Orleans, Louisiana, United States | |
| Joseph Fairchild Knapp | |
| B: | 3 Feb 1892 |
| New York, New York, NY | |
| M: | Abt 1927 |
| D: | 23 Oct 1952 |
| Hampton Bays, Southampton, Suffolk, NY | |
| Austin A O'Brien | |
| B: | 3 May 1866 |
| New York City, New York, United States | |
| D: | 2 Sep 1945 |
| Brooklyn, Kings, New York, United States | |
| Ida Everett Hicks | |
| B: | Feb 1866 |
| New York City, New York, United States | |
| D: | 1932 |
| Brooklyn, Kings, New York, United States | |
| Mary O'Brien() | |
| B: | Ireland |
| D: | Abt 1874 |
| New York City, New York, United States | |
| Patrick O’Brien | |
| B: | Ireland |
| D: | 9 Mar 1884 |
| Long Island, New York, United States | |
