| Father | William B Rittenhouse (1695 - 1767) |
| Mother | Catharine Lakin Howell (1700 - 1778) |
| Sibling | Lott Rittenhouse (1737 - 1813) |
| Sibling | Moses Rittenhouse Sr. (1728 - 1774) |
| Sibling | Susannah "Susan" Rittenhouse (1727 - 1798) |
| Sibling | Issac Rittenhouse (1726 - 1809) |
| Sibling | Hannah Rittenhouse (1729 - 1798) |
| Sibling | Jacob Rittenhouse (1725 - 1811) |
| Sibling | Peter Rittenhouse (1724 - 1791) |
| Sibling | Abraham Rittenhouse (1723 - 1815) |
| Sibling | Anne Rittenhouse (1731 - ) |
| Sibling | Henry R Rittenhouse (1732 - 1815) |
| Sibling | William C Rittenhouse Jr. (1720 - 1799) |
| Sibling | Priscilla Howell Rittenhouse (1719 - 1742) |