Martha Mowry Harris was born 1 April 1726 in Smithfield, Providence County, Rhode Island to Uriah Mowry (1705-1792) and Urania Paine (1706-1772) and died April 1774 Smithfield, Providence County, Rhode Island of unspecified causes. She married Preserved Harris (1715-1797) 26 April 1744 in Smithfield, Providence County, Rhode Island.
Children
| Name | Birth | Death | Joined with |
| Urania Harris (1745-1794) | |||
| Israel Harris (1747-1811) | |||
| Rufus Harris (1749-1798) | 23 November 1749 Smithfield, Providence County, Rhode Island, United States | 30 May 1798 Smithfield, Providence County, Rhode Island, United States | Lucy Hill (1751-1824) |
| Lydia Harris (1752-1795) | |||
| Elnathan Harris (1755-1823) | |||
| Nathan Harris (1758-1835) | 23 March 1758 Smithfield, Providence County, Rhode Island, United States | 17 November 1835 Mentor, Lake County, Ohio, United States | Rhoda Lapham (1759-1849) |
| Jesse Harris (1760-1803) | |||
| Martin Harris (1764-1797) | |||
| Nathaniel Harris (1774-) | |||
Siblings