(1) He is married to Cattelijne Jaspers.
Permission for the marriage has been obtained in Hontenisse on June 29, 1652.Source 1
datum: 29 jun 1652; naam bruidegom: Guiljaem du Pois; naam bruid: Cattelijne Jaspers; weduwe van: Paulus le Feber; scan: 29; link naar scan: https://www.familysearch.org/ark:/61903/3:1:3QS7-89QG-2K7J?i=28&cc=2036997
(2) He is married to Elizabeth van Overloop.
Permission for the marriage has been obtained in Hontenisse on May 3, 1668.Source 1
datum: 3 mei 1668; naam bruidegom: Guliaam du Pou; weduwnaar van: Catalijntie Jaspaars; naam bruid: Elizabeth van Overloop; weduwe van: Paulus van Meert; scan: 57; link naar scan: https://www.familysearch.org/ark:/61903/3:1:3QSQ-G9QG-2VBB?i=56&cc=2036997