| Father | Sgt. Henry Machen Jr. (1745 - 1821) |
| Mother | Frances Ballenger (1756 - 1826) |
| Sibling | James Ballinger Machen (1773 - 1846) |
| Sibling | Thomas Wood Machen (1775 - 1775) |
| Sibling | Henry Ballinger Machen (1776 - 1861) |
| Sibling | John Seaborn Machen (1777 - 1862) |
| Sibling | Mary Wood Machen (1781 - 1857) |
| Sibling | Elizabeth Machen (1782 - 1836) |
| Sibling | Margaret Ballinger Machen (1783 - 1876) |
| Sibling | Hannah Wood Machen (1785 - ) |
| Sibling | Francis Ballinger Machen (1787 - 1860) |
| Sibling | Sarah Ballinger Machen (1789 - 1877) |
| Sibling | Edward Ballinger Machen (1791 - 1818) |
| Sibling | Frances Ballenger Machen (1793 - 1878) |
| Sibling | Grace Greenwood Machen (1796 - 1820) |
| Sibling | Nancy Kelly Machen (1798 - 1876) |