The book "A Genealogical and Personal History of Bucks County, Pennsylvania", by William Watts Hart Davis, publ. by Genealogical Publishing Co. in 1975 (reprint of the 1905 edition), states "Abraham, baptised July 4, 1686, married October 17, 1716, Maritje Van Sandt." An unsourced site states they were married (on that date) at the First Presbyterian Church in Abington, PA.
There is also a baptismal record for a daughter Syntje (just located it and added to the record) which could perhaps be for Maritje.
While indeed it would be nice for interested family members to pipe up, no one has done so in over 1-1/2 years. It would be really nice to get these duplicates merged. I see no reason to not go with the Van Sandt spelling, as is the spelling on the father's profile.