Thank you for your reply. I did find the first and second "intentions" in the monthly meeting minutes. But could not find a record of actual marriage. However, I did find Peter named as husband of Alice Worrilow LDS microfilm #0020854Chester County PA Deed Book E:release of property.All of the children of John Worrilow are named, with their spouses. Peter Yarnall spouse of Alice, she the daughter of John Worrilow.
LDS microfilm #0432021Chester Monthly Meeting Delaware Co PA.1681-1721p190-191 meeting at Providence, "Peter Yarnall's marriage reported orderly."date of meeting 25-2-1715
And this is the proof that I needed...Peter Yarnall was definitely the husband of Alice Worrilow.