1776 - Aft 1824 (> 49 years)
| Isaac Underwood 1821- |
| Isaac Underwood | |
| B: | Jul 1821 |
| D: | , Knox, OH, USA |
| Martha J. Sumptius | |
| M: | 21 Jul 1870 |
| Jay, Indiana, USA | |
 | Lydia Rowland -1867 |
| Lydia Rowland | |
| M: | 1 Jan 1843 |
| D: | 30 Aug 1867 |
| Jesse T. Underwood 1824-Yes, date unknown |
| Jesse T. Underwood | |
| B: | 28 Feb 1824 |
| Knox County, Ohio, United States of America | |
| D: | Yes, date unknown |
| Sarah A Hudson 1825-1911 |
| Sarah A Hudson | |
| B: | Jan 1825 |
| Madison County, Ohio, United States of America | |
| M: | 17 Apr 1884 |
| Winchester, Randolph, Indiana, United States | |
| D: | 3 Nov 1911 |
| Jay County, Indiana, United States of America | |
| Mary Underwood Abt 1840- |
| Mary Underwood | |
| B: | Abt 1840 |
| Ohio, USA | |
| Jane Underwood Abt 1845- |
| Jane Underwood | |
| B: | Abt 1845 |
| Ohio, USA | |
| Israel Underwood 1820-Yes, date unknown |
| Israel Underwood | |
| B: | Jun 1820 |
| D: | Yes, date unknown |
| Rosanna Blackburn Abt 1817- |
| Rosanna Blackburn | |
| B: | Abt 1817 |
| Pennsylvania | |
|
| William Underwood 1776-Aft 1824 |
| William Underwood | |
| B: | Jul 1776 |
| York, Pennsylvania, United States | |
| D: | Aft 1824 |
| , Knox, OH, USA | |
| Mary Williams 1784-Yes, date unknown |
| Mary Williams | |
| B: | May 1784 |
| M: | Abt 1819 |
| D: | Yes, date unknown |
| William Underwood 1805-Aft 1873 |
| William Underwood | |
| B: | 13 May 1805 |
| Clinton, Ohio, United States | |
| D: | Aft 1873 |
| , Wabash, IN | |
| Rebecca Underwood 1803-1868 |
| Rebecca Underwood | |
| B: | 31 Jan 1803 |
| Wilmington, Clinton, Ohio, USA | |
| D: | 26 Nov 1868 |
 | Theodore F Wilson 1829-1906 |
| Theodore F Wilson | |
| B: | 20 May 1829 |
| Knox County, Ohio, USA | |
| D: | 4 Jun 1906 |
| Wayne County, Indiana, USA | |
| Willis S. Wilson 1827- |
| Willis S. Wilson | |
| B: | 6 Mar 1827 |
| Delaware, Ohio | |
| D: | California, USA |
| Mary Wilson 1833-1879 |
| Mary Wilson | |
| B: | 11 Dec 1833 |
| Delaware, Ohio | |
| D: | 22 Jun 1879 |
| Deborah Wilson 1831-1855 |
| Deborah Wilson | |
| B: | 5 Aug 1831 |
| Delaware, Ohio | |
| D: | 2 Feb 1855 |
 | Hannah Underwood 1807-1837 |
| Hannah Underwood | |
| B: | 29 May 1807 |
| Clinton, Ohio, United States | |
| D: | 28 Oct 1837 |
| Pennville, Jay, Indiana, USA | |
 | Joseph Wilson 1796-1867 |
| Joseph Wilson | |
| B: | 6 Nov 1796 |
| York County, Pennsylvania, USA | |
| M: | 25 Aug 1824 |
| Ohio, USA | |
| D: | 13 Dec 1867 |
| Mound City, Linn County, Kansas, USA | |
| Deborah Underwood 1807-1852 |
| Deborah Underwood | |
| B: | 29 May 1807 |
| Clinton, Ohio, United States | |
| D: | 12 May 1852 |
| Allen Underwood 1829-1855 |
| Allen Underwood | |
| B: | Feb 1829 |
| D: | Mar 1855 |
| Ellen Underwood 1843-Yes, date unknown |
| Ellen Underwood | |
| B: | Apr 1843 |
| D: | Yes, date unknown |
| Hannah Underwood 1840-Yes, date unknown |
| Hannah Underwood | |
| B: | Oct 1840 |
| D: | Yes, date unknown |
| Phoebe Ann Underwood Abt 1836- |
| Phoebe Ann Underwood | |
| B: | Abt 1836 |
| Ohio, USA | |
| John Underwood 1830-1834 |
| John Underwood | |
| B: | Mar 1830 |
| D: | Jan 1834 |
| Deborah Underwood 1826-1855 |
| Deborah Underwood | |
| B: | Dec 1826 |
| D: | Sep 1855 |
| Ortus J. Underwood Abt 1869- |
| Ortus J. Underwood | |
| B: | Abt 1869 |
| Indiana, USA | |
| Leona Underwood Abt 1871- |
| Leona Underwood | |
| B: | Abt 1871 |
| Indiana, USA | |
| Otto Underwood Abt 1873- |
| Otto Underwood | |
| B: | Abt 1873 |
| Indiana, USA | |
| Mary Underwood Abt 1875- |
| Mary Underwood | |
| B: | Abt 1875 |
| Kansas | |
| Grace Underwood 1879- |
| Grace Underwood | |
| B: | Oct Abt 1879 |
| Kansas | |
| William W. Underwood 1838-Yes, date unknown |
| William W. Underwood | |
| B: | 18 Mar 1838 |
| D: | Yes, date unknown |
| Mary Melissa James Abt 1846- |
| Mary Melissa James | |
| B: | Abt 1846 |
| Indiana, USA | |
| M: | 5 Sep 1867 |
| Louisa Underwood 1845-Yes, date unknown |
| Louisa Underwood | |
| B: | Oct 1845 |
| D: | Yes, date unknown |
| Jeremiah K. West Bef 1845- |
| Jeremiah K. West | |
| B: | Bef 1845 |
| Mary Amanda Underwood 1833-Yes, date unknown |
| Mary Amanda Underwood | |
| B: | Feb 1833 |
| D: | Yes, date unknown |
| Unknown |
| Ezekiel Underwood 1801-1856 |
| Ezekiel Underwood | |
| B: | 8 May 1801 |
| Clinton, Ohio, United States | |
| D: | 12 May 1856 |
| Clinton, Ohio, United States | |
| Ann Wall Abt 1807- |
| Ann Wall | |
| B: | Abt 1807 |
| Pennsylvania | |
| Deborah Kirk 1781-Bef 1819 |
| Deborah Kirk | |
| B: | 19 Nov 1781 |
| Warrior Mark, Huntingdon, Pennsylvania, United States | |
| M: | 20 Mar 1800 |
| , Centre, PA | |
| D: | Bef 1819 |
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