John Alden, Jr. was born 9 October 1731 in Needham, Norfolk County, Massachusetts to John Alden (1690-1783) and Thankful Parker (1704-1790) and died 31 March 1793 Vermont of unspecified causes. He married Mary Adams (1735-1774) 26 September 1754 in Medway, Norfolk County, Massachusetts. He married Prudence Butler (1778-1845) 1776 in Massachusetts.
Children
| Name | Birth | Death | Joined with |
| Millicent Alden (1755-1855) | |||
| Mary Alden (1757-) | |||
| Sarah Alden (1760-1803) | 21 March 1760 Medway, Suffolk County, Massachusetts, United States | 29 June 1803 Rutland, Worcester County, Massachusetts, United States | Daniel Adams (1750-1832) |
| John Adams Alden (1763-1843) | 11 July 1763 Medway, Norfolk County, Massachusetts | 13 April 1843 Solon, New York | Hannah Daniels (1768-1843) |
| Lois Alden (1765-) | |||
| Phinehas Alden (1768-) | |||
| Name | Birth | Death | Joined with |
| Nathaniel Butler Alden (1778-1845) | |||
Siblings
| Name | Birth | Death | Joined with |
| Jemima Alden (1729-1786) | |||
| John Alden (1731-1793) | 9 October 1731 Needham, Norfolk County, Massachusetts | 31 March 1793 Vermont | Mary Adams (1735-1774) Prudence Butler (1778-1845) |
| Alice Alden (1733-1825) | |||
| Henry Alden (1734-1809) | |||
| Silas Alden (1736-1826) | |||
| Moses Alden (1738-1758) | |||
| Thankful Alden (1740-1814) | |||
| Bethiah Alden (1741-1742) | |||
| Samuel Alden (1742-) | |||
| Thomas Alden (1744-1813) | |||
| Bertha Alden (1745-1810) | |||
| Mary Alden (1748-1828) | |||
| Enoch Alden (1752-) | |||