Mercy Cornish Sturtevant was born 4 August 1654 in Plymouth Colony, Plymouth, Plymouth County, Massachusetts to Thomas Cornish (1615-1662) and Mary Stone (1608-1662) and died 14 August 1714 Plympton, Plymouth County, Massachusetts of unspecified causes. She married Samuel Sturtevant (1654-1736) 12 July 1666 in Plymouth Colony, Plymouth, Plymouth County, Massachusetts.
Children
| Name | Birth | Death | Joined with |
| Mercy Sturtevant (1676-1707) | |||
| Samuel Sturtevant (1677-1743) | |||
| Hannah Sturtevant (1681-1759) | 1681 Plympton, Plymouth County, Massachusetts | 23 January 1759 Plymouth, Plymouth County, Massachusetts | Ebenezer Standish (1672-1755) |
| Nehemiah Sturtevant (1682-1744) | |||
| William Sturtevant (1683-1753) | |||
| John Sturtevant (1687-1723) | |||
| James Sturtevant (1688-1756) | |||
| Josiah Sturtevant (1690-1774) | |||
| Moses Sturtevant (1695-1762) | |||
Siblings
| Name | Birth | Death | Joined with |
| Priscilla Cornish (1642-1725) | |||
| John Cornish (1643-1702) | |||
| James Cornish (1645-) | |||
| Thomas Cornish (1649-1724) | |||
| Mary Cornish (1648-1702) | |||
| Benjamin Cornish (1652-1736) | |||
| Mercy Cornish (1654-1714) | 4 August 1654 Plymouth Colony, Plymouth, Plymouth County, Massachusetts | 14 August 1714 Plympton, Plymouth County, Massachusetts | Samuel Sturtevant (1654-1736) |