| Father | John Francis Buller MP (1695 - 1751) |
| Mother | Rebecca Trelawny (1695 - 1743) |
| Sibling | Sir James Buller MP (1717 - 1765) |
| Sibling | Francis Buller MP (1719 - 1755) |
| Sibling | Mary Buller (1719 - 1787) |
| Sibling | John Buller Esq., MP, Lord of the Admiralty (1721 - 1786) |
| Sibling | Francis Buller (1723 - 1764) |
| Sibling | Anne Buller (1726 - 1758) |
| Sibling | Jonathan Buller (1727 - 1727) |
| Sibling | Charles Buller (1728 - 1728) |
| Sibling | Thomasine Buller (1730 - 1731) |
| Sibling | Elizabeth Buller (1733 - 1789) |
| Sibling | Rt Rev William Buller Bishop of Exeter (1735 - 1796) |