He is married to Maria Gertrud Fliskens Fliesgen Flesgens Flürkens.
They got married on July 1, 1794 at Roemisch-Katholisch,Obermoermter,Rheinland,Prussia.Source 2
FamilySearch: Family Tree
Joannes Heygman
Spouse Maria Gertrud Fliskens Fliesgen Flesgens Flürkens
Lead confidence: 5
https://www.familysearch.org/tree/person/MMCT-VJL
FamilySearch: Family Tree
Joannis Heygman
Spouse Maria Flierckens
Children Jacobus Wilhelmus Heygman • Petrus Heygman
Lead confidence: 5
https://www.familysearch.org/tree/person/KHLQ-F3T
"Deutschland Heiraten, 1558-1929", database, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:JHZM-59V : 23 November 2020), Joannes Heygman, 1794.
This extracted record was used to create this person in Family Tree.
https://familysearch.org/ark:/61903/1:1:JHZM-59V
https://familysearch.org/ark:/61903/4:1:MMCT-VVC