| Father | Timothy Merrill (1778 - 1850) |
| Mother | Elizabeth "Betsy" Bradshaw ( - ) |
| Sibling | Wiley B. Merrill (1803 - 1852) |
| Sibling | Austin D. Merrill (1806 - 1829) |
| Sibling | William Merrill (1808 - 1838) |
| Sibling | Benjamin Merrill (1810 - ) |
| Sibling | Elizabeth Merrill (1814 - 1834) |
| Sibling | Mary E. Merrill (1818 - 1910) |
| Sibling | Robert Merrill (1820 - ) |
| Sibling | Susan Merrill (1822 - ) |
| Sibling | Alexander F. Merrill (1823 - 1886) |
| Sibling | [Child] Merrill (1824 - 1824) |
| Sibling | Mumford Merrill (1826 - ) |
| Sibling | Richmond Pierson Merrill (1828 - ) |