(1) He is married to Tanneken Schepper.
Permission for the marriage has been obtained in Hontenisse on January 29, 1688.Source 1
datum: 29 jan 1668; naam bruidegom: Joos de Block; naam bruid: Tanneken Scheppers; weduwe van: NN; scan: 56; link naar scan: https://www.familysearch.org/ark:/61903/3:1:3QS7-L9QG-2K8J?i=55&cc=2036997
(2) He is married to Cornelia Jansen.
Permission for the marriage has been obtained in Hontenisse on June 28, 1689.Source 1
datum: 28 jun 1689; naam bruidegom: Joost de Block; weduwnaar van: Anneken Scheppers; naam bruid: Cornelia Jans; scan: 25; link naar scan: https://www.familysearch.org/ark:/61903/3:1:3QS7-L9QJ-34DD?i=24&cc=2036997