Hi Erik,
I am not sure this is your question but I checked out the profile. You set Johanna Kerkhof as mother for Peter John.
Here is the birth doc of Johanna Kerkhof born 08-05-1825 in Oeffelt.
This might be the birth certificate of Piet Kremers son of Peter Kremers and Johanna Kerkhof, born 1867-09-01 (day and month same but 1 year difference) in Gassel Noord-Brabant, The Netherlands. Parents fit. It that fits in your opinion as well - here are all brothers and sisters: Therus, Hendrina Petronella, Roselina, obvious Roselina passed away before 1862-10-26 as a second Roselina was born, a stillborn child, then your Piet, pronounced as Peet in English, is born. He seems to be the youngest and last one born. I love to find more if needed as I am not sure I anwer your question.
To all here if you have Dutch ancestors please feel very free to join us at the Dutch Roots Project (DRP). We are a bunch of I think pretty nice people that loves to help you and always looking for new members.
Here you can read how to join us. Don't feel shy, Dutch or of other languages we have our pages in two languages, dutch and english. And we can even help in a few other languages. All we ask is you abide at least the WT honour code of course and take the pre-1700 test.
Now I am not here just to promote our project I love so much!
Most of all I hope I answered you question Erik. If not feel free to contact me please by my sending me a message via my profile.
If you search for Dutch anchestors born before 1811 please search at WieWasWie or in English WhoWasWho (you can set the page to English) it is free unless you like to have some extra features as searching on two names.
We have at the Dutch_Roots_Project a great page Jan Terink (co-leader at the DRP, and a very accurate worker at WT) made with reliable sources in The Netherlands. Of course Family Search gives lots of answers. But there are many regional search pages as well available. Please check out our pages.
Be aware we (crazy Dutch! (Dutch is not from Germany!!) have a different way of adding names at WT for profiles born before 1811. Without explaining history at our country please be aware of the Dutch Roots Naming convention.
Erik stay in touch please, I love to help you as much as I can.
Sweet regards from a very late The Netherlands.
A.