A kind is a child, plural kinderen. You may come across the term in wills, guardian appointments or other types of notarial and court records.
About Yvette Hoitink
Yvette Hoitink, CG®, QG™ is a professional genealogist in the Netherlands. She holds the Certified Genealogist credential from the Board for Certification of Genealogists and has a post-graduate diploma in Family and Local History from the University of Dundee. She has been doing genealogy for over 30 years and helps people from across the world find their ancestors in the Netherlands. Read about Yvette's professional genealogy services.
My grandfather came from Barneveld, Netherlands. He always would refer to his kids, grandkids, etc as Kiddies.