I have nothing on the family of William Critchfield.Here is what I have on the children of William and Annetje Opdyke. William b. 1718 Lebanon Twp., Hunterdon Co., NJ. Susanna b. 1720 same place.Ruth b. 1721 same place. Elizabeth b. 1727 Lebanon Twp., Hunterdon Co., NJ d. aft 1786 Derry Twp., Mifflin Co., PA-quaker. m. 1740 Burlington Co., NJ John Frampton b. Jul 14, 1714 Burlington Co., NJ d. 1790 Derry Twp., Mifflin Co., PA-quaker. They had 8 Children. I have info on William, Samuel, Nathaniel,and Mary if you are interested.