| Father | Male Thomas Underwood |
| Born | 4 Aug 1804 | Tennessee |
| Died | 19 Jul 1888 | |
| Buried | Underwood Family Cemetery, Sevier County, Tennessee |
|
| Married | 1834 | |
| Father | John Underwood | F23349 Group Sheet | |
| Mother | Elizabeth Manifold | F23349 Group Sheet | |
| Mother | Female Elizabeth Johnson |
| Born | 1 Aug 1813 | Tennessee |
| Died | 6 Jun 1893 | |
| Buried | Underwood Family Cemetery, Sevier County, Tennessee |
|
| Father | Calvin Johnson | F23347 Group Sheet | |
| Mother | ||
| Child 1 | Male + John Thomas Underwood |
| Born | 6 Oct 1836 | Tennessee |
| Died | 21 May 1923 | |
| Buried | Underwood Family Cemetery, Sevier County, Tennessee |
|
| Spouse | Mariah Jane Covington | F23351 | |
| Married | 19 Oct 1858 | Sevier County, Tennessee |
| Child 2 | Male + James B. Underwood |
| Born | 1838 | |
| Died | 1928 | |
| Buried | Beech Springs Cemetery, Sevier County, Tennessee |
|
| Spouse | Martha Jane McClary | F133705 | |
| Married | ||
| Child 3 | Male + Ephriam J. Underwood |
| Born | 14 Jan 1844 | Knox County, Tennessee |
| Died | 22 Nov 1932 | |
| Buried | Pollard Cemetery, Sevier County, Tennessee |
|
| Spouse | Mary Ann Keener | F62305 | |
| Married | ||
| Child 4 | Male + Samuel Underwood |
| Born | 4 May 1848 | Tennessee |
| Died | 10 Apr 1925 | Sevier County, Tennessee |
| Buried | 11 Apr 1925 | Oak Grove Cemetery, Sevier County, Tennessee |
| Spouse | Martha | F144483 | |
| Married | Abt 1880 | |