Pieter Willemsz van der Mark - Marriage

On Geni :
1-Pieter Willemsz van der Mark was born in 1701.
2-His wife Maria Simonse Prins was born in 1601.
3 Son Arie Vandermark has no dates of birth or death but his wife Trijntje was only 9 years older the Arie's father Peter.

I think you need to do some work here.