My info on Abraham Schroll indicates as follows:
Father was Christian Schroll (b:before 1759 in York County, PA. No info on his death. Married Elizabeth Hahn in the First Reformed & Trinity First Reformed Church in York, PA on August 15, 1779. They had seven children as far as I can tell, one of them was Abram (Abraham). Christian is mentioned in the census of 1790 in York, PA.
Would love to exchange info.