I am looking for the children of Rik van Brummelen and Jannetje Kroon from Nijkerk, Gelderland. I searched Genlais.nl and I have found eight children who died before the age of two, one son (Harmen, my grandfather), and four daughters (Willempje, Pietje, Willemina, and Jannetje) by their marriage records.
There were a total of 21 children so I am missing information for eight remaining children who I think are probably sons that I can't track through marriage records. Nijkerk does not have any birth records available via Genlias so I'm stuck.
I would appreciate any information - I have tried every kind of search I can think of and I can't find these brothers anywhere in the Netherlands.