Family with parents
father Parents Maerten PietersLekkerkerker Dirckje Pieters“Koojman” Cooyman	Pieter MaertenseLekkerkerker 1717–1787
mother Parents (unknown)	Annigje HuibertseDuijker 1725–1767
elder brother Family Aeltjevan de Graaf	MeertenLekkerkerker