| Father | Pieter van Blerkom |
| | Baptized | 19 February 1725 |
| | Died | 14 September 1808 |
| Mother | Jacoba Patist |
| | Born | about 1748 |
| | Died | 16 June 1816 |
| Sister | Fransintie born about 1755 |
| Brother | Pieter born about 1755 |
| Sister | Francijntie Piter bapt. 18 November 1757 |
| Sister | Anna Pieter bapt. 9 February 1773 |
| Sister | Elsje Pieter bapt. 24 September 1775 |
| Sister | Maria bapt. 1 March 1778 |
| Sister | Johanna bapt. 16 January 1781 |
| Sister | Hillegonda bapt. 21 August 1783 |
| Sister | Antenette bapt. 3 March 1785 |
| Sister | Hillegonda bapt. 25 November 1789 |
| Brother | Johannes born 9 January 1791 |
| Brother | Jacobus born 7 March 1794 |
