(1) He is married to Geertruijt Goossen.
Permission for the marriage has been obtained in Hontenisse on September 28, 1728.Source 1
datum: 28 sep 1728; naam bruidegom: Anthoni de Sterk; naam bruid: Geertrui Goossen; weduwe van: Joost de Pauw {en Augustinus van Loo?}; scan: 129; link naar scan: https://www.familysearch.org/ark:/61903/3:1:3QS7-L9QJ-3HD3?i=128&cc=2036997
(2) He is married to Catharina Doeij.
Permission for the marriage has been obtained in Hontenisse on January 11, 1744.Source 1
datum: 11 jan 1744; naam bruidegom: Anthonij de Sterk; weduwnaar van: Geertruijd Goossen; naam bruid: Catharina Doeij; weduwe van: Augustinus van Loo; scan: 166; link naar scan: https://www.familysearch.org/ark:/61903/3:1:3QS7-89QJ-3HRP?i=165&cc=2036997