| Father | Johannes Blaser Longenecker (1704 - 1767) |
| Mother | Elizabeth Wymann Kündig (1709 - 1781) |
| Sibling | Jacob Kendig Longenecker (1723 - 1799) |
| Sibling | Christian Longenecker (1731 - 1808) |
| Sibling | Henry Kendig Longenecker (1733 - 1805) |
| Sibling | Peter Longenecker (1738 - 1803) |
| Sibling | Hans Johannes Longenecker (1739 - 1793) |
| Sibling | Abraham Longenecker (1739 - 1800) |
| Sibling | Ulrick Longenecker (1739 - 1799) |
| Sibling | Anna Mary Longenecker (1741 - 1777) |
| Sibling | Joseph Longenecker (1742 - 1766) |
| Sibling | Daniel Longenecker (1744 - 1796) |
| Sibling | Elizabeth Longenecker (1746 - ) |
| Sibling | Mary Longenecker (1749 - 1777) |