Nathaniel Hinckley, Jr. was born 12 July 1769 in Harwich, Barnstable County, Massachusetts to Nathaniel Hinckley (1738-1790) and Mercy Nickerson (1742-1821) and died 22 May 1849 Clinton County, New York of unspecified causes. He married Rhoda Barber (1773-1859) 29 December 1791 in Elizabethtown, Essex County, New York.
Children
| Name | Birth | Death | Joined with |
| Erastus Nathaniel Hinckley (1794-1831) | 5 December 1794 Elizabethtown, Essex County, New York | 8 September 1831 Bastard, Leeds County, Ontario, Canada | Lois Judd (1805-1842) |
| Silas Barnard Hinckley (1811-1859) | |||
Siblings
| Name | Birth | Death | Joined with |
| Deborah Hinckley (1762-1841) | |||
| Isaac Hinckley (1767-1857) | |||
| Nathaniel Hinckley (1769-1849) | 12 July 1769 Harwich, Barnstable County, Massachusetts | 22 May 1849 Clinton County, New York | Rhoda Barber (1773-1859) |
| Mercy Hinckley (1770-1833) | |||
| Thomas Hinckley (1773-1814) | |||
| Rachel Hinckley (1776-1844) | |||
| Elijah Hinckley (1783-1846) | |||