I do not have much information about the Schipvaart family.
This is how I am related to the Schipvaart family...
Cornelius van der Molen married Harmtje Jans Schipvaart.
Harmtje Jans Schipvaart was born in 1770 in Toornwerd.
Harmtje Jans Schipvaart died in January 1840 in Toornwerd.
I am not sure if the 1770 birth date is correct, but that is the date that I have recorded. (1790 might be more accurate)
Please let me know if you have additional information.