Hi, Les!
I found your WILLIAMS/IVES marriage and have an image for you. The info is posted below, however:
George WILLIAMS of Darvill's Hill and Mary IVES of Speen
by Banns No. 230 with consent of parents and affadavit No. 12
13 March 1823
Both made their marks and witnesses were Hannah IVES and Thomas Ayres, parish clerk.
Didn't have a chance to see if there is anything in my FHC library that would cover Saunderton or Crowell ... sorry.