Family with parents
father Parents Jacob Claeszvan Amersfoort Johanna Heijmeriksvan Til	Klaasvan Amersfoort 1726–1807
mother Parents (unknown)	HendrikaHermsen 1735–1763
himself Family (none)	Jacobvan Amersfoort 1759–1821
twin sister Family (none)	Annavan Amersfoort