I have not gotten too far on Capt William's parents (although I had a lead on his parents being a Thomas and Alice) because I cannot verify that Ezekiel is William's son. Are you certain that Capt William is Ezekiel's father? I cannot find any bit of evidence on who Ezekiel's parents are.
From which child of Ezekiel's do you descend? I am down the Timothy-David-Crawford-Sarah line.