He is married to Johanna Maria van Grootveld.
They got married on December 28, 1779 at Dalfsen, he was 26 years old.Source 1
Child(ren):
Auteur: Jhr. A.J. Gevers
Uit: Overijsselse Biografieën
https://www.wieiswieinoverijssel.nl/zoekresultaten/p1/68-michael-helmich
http://www.biografischportaal.nl/persoon/47962454
Michaël Helmich | |||||||||||||||||||||||||||||||||||||
1779 | |||||||||||||||||||||||||||||||||||||
Johanna Maria van Grootveld |