Mary Smith Merrill was born 1818 in Meredith, Belknap County, New Hampshire, United States to John Smith (1792-1866) and Mary Mudgett (1797-1869) and died 2 November 1908 Meredith, Belknap County, New Hampshire, United States of unspecified causes. She married Jacob Lee Merrill (1818-1889) 1842 in Belknap County, New Hampshire.
Children
| Name | Birth | Death | Joined with |
| Julia A Merrill (1844-1928) | |||
| Mary Lovisa Merrill (1848-) | |||
| John S Merrill (1856-1928) | |||
| George David Merrill (1861-1924) | 25 July 1861 Center Harbor, Belknap County, New Hampshire, United States | 5 May 1924 Laconia, Belknap County, New Hampshire, United States | Mary Bird (1862-1925) |
Siblings
| Name | Birth | Death | Joined with |
| Mary Hussey Smith (1818-1908) | 1818 Meredith, Belknap County, New Hampshire, United States | 2 November 1908 Meredith, Belknap County, New Hampshire, United States | Jacob Lee Merrill (1818-1889) |
| Priscilla M Smith (1818-) | |||
| Timothy Smith (1821-1822) | |||
| Esther Smith (1825-1844) | |||
| Abigail P Smith (1828-1915) | |||
| Huldah P Smith (1829-1915) | |||
| John Smith (1831-1908) | |||
| Benjamin M Smith (1833-1912) | |||
| Lavina Smith (1835-1856) | |||
| George Sullivan Smith (1837-) | |||
| Hannah Smith (1842-1908) | |||