(1) He is married to Helena Pierssens.
Permission for the marriage has been obtained in Hontenisse on January 11, 1693.Source 1
datum: 11 jan 1693; naam bruidegom: Jacob de Wachter; naam bruid: Helena Pierssens; weduwe van: Jan de Kaarsmakers; scan: 32; link naar scan: https://www.familysearch.org/ark:/61903/3:1:3QS7-89QJ-34P6?i=31&cc=2036997
(2) He is married to Pieternella Lauwerts.
Permission for the marriage has been obtained in Hontenisse on February 18, 1696.Source 1
datum: 18 feb 1696; naam bruidegom: Jacob de Waghter; weduwnaar van: Helena Piersen; naam bruid: Pieternella Lauwerts; scan: 39; link naar scan: https://www.familysearch.org/ark:/61903/3:1:3QS7-89QJ-34YD?i=38&cc=2036997