Actually, I'm an Abeel by marriage, but have somehow become the family historian, tracing the lineage all the way back to Stoffel Janse Abeel in the 1600's. My husband's (Scott) father was William Abeel, son of Willam, son of William, son of Hamilton, son of Elisabeth.
Betsey's headstone is lying on the ground just off the pull out (drive) at Maltaville cemetery. I always thought she was the daughter of Cornelius and Susanna, particularly since she inherited that land from Susanna Van Schoonhoven Abeel (Saratoga County deeds).
I'd love to pursue this with you further, and maybe we could become "partners in crime"! Our email is firstname.lastname@example.org