Willem te Kolste was born about 1710 in Aalten, Netherlands to Harmen te Kolstege and Geertje. His occupation was a soldier. He married Aaltjen Woorts on November 20, 1735 in Bredevoort, Aalten, Netherlands. They are both mentioned in Winterswijk and Bredevoort. Aaltjen died in June 1775 and Willem died in 1779.