Deacon Francis Peabody Jr was born 21 September 1715 in Middleton, Essex County, Massachusetts to Francis Peabody (1694-1769) and Dorothy Perkins (1695-1771) and died 7 December 1797 Middleton, Essex County, Massachusetts, United States of unspecified causes. He married Margaret Knight (1722-1806) 26 March 1739 in Middleton, Essex County, Massachusetts.
Children
| Name | Birth | Death | Joined with |
| Benjamin Peabody (1741-1829) | |||
| Andrew Peabody (1742-1751) | |||
| Ruth Peabody (1744-1829) | |||
| Francis Peabody (1745-1817) | |||
| Lydia Peabody (1748-1832) | |||
| Asa Peabody (1751-1801) | |||
| Margaret Peabody (1753-1813) | |||
| Andrew Peabody (1755-1778) | |||
| Joseph Peabody (1757-1844) | 12 December 1757 Middleton, Essex County, Massachusetts, United States | 5 January 1844 Salem, Essex County, Massachusetts, United States | Katharine Smith (1760-1793) Elizabeth Smith (1767-1854) |
| Stephen Peabody (1760-1782) | |||
| Anna Peabody (1763-1860) | |||
| Lucy Peabody (1767-1844) | |||
Siblings
| Name | Birth | Death | Joined with |
| Francis Peabody (1715-1797) | 21 September 1715 Middleton, Essex County, Massachusetts | 7 December 1797 Middleton, Essex County, Massachusetts, United States | Margaret Knight (1722-1806) |
| Samuel Peabody (1716-1716) | |||
| Mary Peabody (1718-) | |||
| Dorothy Peabody (1720-1749) | |||
| Samuel Peabody (1722-1804) | |||
| Nathaniel Peabody (1723-1808) | |||
| William Peabody (1725-1787) | |||
| Isaac Perkins Peabody (1727-1776) | |||
| Daniel Peabody (1728-1801) | 18 October 1728 Middleton, Essex County, Massachusetts, United States | 6 June 1801 Warren, Knox County, Maine, United States | Phebe Foster (1729-1801) |
| Bimsley Peabody (1731-1815) | |||
| Hannah Peabody (1732-1758) | |||
| Stephen Peabody (1735-1818) | |||
| Andrew Peabody (1736-1736) | |||