Henry Pratt was born 14 May 1771 in Wrentham, Norfolk County, Massachusetts to Noah Pratt (1748-1806) and Hanna Stearns (1746-) and died 28 August 1841 Winchester, Cheshire County, New Hampshire of unspecified causes.
Children
| Name | Birth | Death | Joined with |
| Maria Pratt (1796-1817) | |||
| Henry Pratt (1797-1860) | |||
| Marshall Pratt (1799-1829) | |||
| Addison Pratt (1802-1872) | 21 February 1802 Winchester, Cheshire County, New Hampshire, United States | 14 October 1872 Anaheim, Orange County, California, United States | Louisa Barnes (1802-1880) |
| Eliza Pratt (1804-1878) | |||
| Sophronia Pratt (1805-1821) | |||
| Rebecca Jewell Pratt (1808-1838) | |||
| Julius Pratt (1811-1813) | |||
| Marshall Pratt (1814-) | |||
| Horace Pratt (1816-) | |||
| Elizabeth Maria Pratt (1818-1818) | |||
| Horatio Gates Pratt (1820-) | |||
| Charlotte Pratt (1826-) | |||
Siblings
| Name | Birth | Death | Joined with |
| Hannah Pratt (1755-1840) | |||
| Henry Pratt (1771-1841) | 14 May 1771 Wrentham, Norfolk County, Massachusetts | 28 August 1841 Winchester, Cheshire County, New Hampshire | Rebecca Jewell (1778-1860) |
| Nathan Pratt (1773-1843) | |||
| Sarah Pratt (1779-1790) | |||
| Susan Pratt (1781-) | |||
| Oline Pratt (1782-1830) | |||
| Noah Pratt (1784-1847) | |||