You are correct, Simon was the son of Neeltje Pieterson and her second husband Simon Van Arsdal and I have made that correction. (It was the end of the day.) Neeltje's first husband was Johannes Van Arsdale who died in 1772. Simon died in 1783, and Neeltje appeared alone baptizing her son. In the Index to the Pennsylvania Census for 1810, pg. 287. the listing reads: Vanasdal, David York 183 Warrington Twp Vanasdal, Isaac York 184 Warrington Twp Vanasdal, Simon York 184 Warrington Twp This is what lead me to believe that they were living together. Isaac and Simon appeared to be living next to brother David. It is more than possible that the index is incorrect, and since you have given me the actual information taken from the census, itself, this would appear to be the case. I appreciate your sharing this information with me. Would you be willing to share with the information given for both David and Simon in the 1810 census. That would be extremely helpful. There is an administration for David in York County. Unfortunately the County Clerk that sent me the copy did not include the Book this was taken from. I find this happening more often than not these days. The administration was from the November 7th, 1837 Circuit Court - pg 533- York Co. PA Vandal, Jacob Vanasdale, Administrator of the Estate of David Vanasdall, late of Franklin Township, Deceased, by attorney appeared in Court and produced his Administration account of the Estate of said deceased, duly settled and p-assed before the Register of York County where by there appears to be a balance due the said accountant of sixty-six dollars and fifteen and a half cents, which account the court do here by confirm. While I cannot say for certain, it is possible that Jacob Vanasdale, was the son of Isaac and Elsabetha Margareta born in 1803. Yes, this is the Isaac who was married to Margretha Elizabeth Arnold. Do you have any idea at all, who the parents of Neeltje Pieterson and Hannah Pieterson were? Also do you descend from one of these families? Any additional information that you might have would be extremely helpful With appreciation Judy