Abt 1622 - Yes, date unknown
| John Underwood | |
| B: | 1850 |
| D: | 1853 |
| Elizabeth Adele Underwood | |
| B: | 1854 |
| D: | Yes, date unknown |
| William Woodhull Underwood | |
| B: | 16 Jan 1856 |
| Freeport, Nassau, New York, United States | |
| D: | 16 Jan 1930 |
| Patchogue, Suffolk, New York, United States | |
| Josephine Mary Finn | |
| B: | 25 Nov 1866 |
| Wexford, County Wexford, Ireland | |
| M: | 8–1886 |
| D: | 30 Sep 1943 |
| Frank Underwood | |
| B: | 1858 |
| New York | |
| D: | Yes, date unknown |
| Susan Underwood | |
| B: | Abt 1858 |
| Groton, Tompkins, New York, United States | |
| D: | 9 Nov 1932 |
| Bridgeport, Fairfield, Connecticut, United States | |
| Josiah Underwood | |
| B: | 1867 |
| Port Jefferson, Suffolk, New York, United States | |
| D: | 17 May 1879 |
| Patchogue, Suffolk, New York, United States | |
| John Underwood | |
| B: | 31 Aug 1869 |
| Port Jefferson, Suffolk, New York, United States | |
| D: | 11 Dec 1869 |
| Patchogue, Suffolk, New York, United States | |
| Bertha Underwood | |
| B: | Aug 1877 |
| New York | |
| D: | 2 Feb 1914 |
| John Wesley Underwood | |
| B: | 26 Jan 1818 |
| Groton, Tompkins, New York, United States | |
| D: | 8 Apr 1873 |
| Brookhaven (Patchogue), Suffolk, New York, United States | |
| Amelia Huff | |
| B: | 13 Feb 1828 |
| Newburgh, Orange, New York, United States | |
| M: | Abt 1840 |
| Village of Groton, Tompkins County, New York | |
| D: | 3 Jan 1892 |
| Norwalk, Fairfield, Connecticut, United States | |
| Stanley Underwood | |
| B: | 1843 |
| Groton, Tompkins, New York, United States | |
| D: | 19 Jun 1861 |
| Manhattan, New York City, New York | |
| John W Underwood | |
| B: | 27 Feb 1846 |
| McLean, Tompkins, New York, United States | |
| D: | 15 Sep 1846 |
| McLean, Tompkins, New York, United States | |
| Eliza Jane Smith | |
| B: | 18 Dec 1818 |
| M: | Abt 1840 |
| Village of Groton, Tompkins County, New York | |
| D: | 4 Mar 1846 |
| Town of Groton, Tompkins County, New York | |
| William Underwood | |
| B: | 19 Dec 1789 |
| Kingston, Luzerne, Pennsylvania, USA | |
| D: | 17 Aug 1865 |
| Groton, Tompkins, New York, USA | |
| Ruth Goodwin | |
| B: | 23 Apr 1794 |
| Tompkins, New York, USA | |
| M: | Abt 1810 |
| Tompkins Co, New York, United States | |
| D: | 22 Apr 1888 |
| Groton, Tompkins, New York, USA | |
| Israel Underwood | |
| B: | 4 Apr 1746 |
| Plainfield, Windham, Connecticut | |
| D: | 15 Jun 1817 |
| Lansing, Tompkins, New York, USA | |
| Doritha Benjamin | |
| B: | 22 Apr 1752 |
| Canterbury, Windham, Connecticut Colony, British Colonial America | |
| D: | 1840 |
| , Tompkins, New York, USA | |
| Israel Underwood | |
| B: | 1720 |
| Plainfield, Windham, Connecticut Colony, British Colonial America | |
| D: | 13 Jun 1788 |
| Pomfret, Windham, Connecticut Colony, British Colonial America | |
| Ruth Bassett | |
| B: | 22 Jun 1715 |
| East Greenwich, Kent, Rhode Island, British Colonial America | |
| D: | Pomfret, Windham, Connecticut Colony, British Colonial America |
| Israel Underwood | |
| B: | 13 Jan 1682 |
| Boston, Suffolk, Massachusetts Bay Colony, British Colonial America | |
| D: | Yes, date unknown |
| Elizabeth Underwood() | |
| B: | 1680 |
| Massachusetts | |
| D: | Massachusetts |
| Elizabeth Rich | |
| B: | 30 Nov 1656 |
| Watertown, Middlesex, Massachusetts Bay Colony, British Colonial America | |
| D: | 23 Dec 1729 |
| Watertown, Middlesex, Massachusetts Bay Colony, British Colonial America | |
| John Underwood | |
| B: | 1652 |
| D: | Yes, date unknown |
| Gibson Underwood | |
| B: | 1650 |
| Middlesex, Middlesex, Massachusetts, United States | |
| D: | Massachusetts, United States |
| William Rich | |
| B: | Abt 1622 |
| All Cannings, Wilts, Eng. | |
| D: | Yes, date unknown |
| Annes Rich | |
| B: | Abt 1626 |
| All Cannings, Wiltshire, England, United Kingdom | |
| D: | Yes, date unknown |
