I am also a great or great-great grandchild of Peter. My grandfather is Marion Revere Madsen. I spent a great deal of time researching my family tree as a teenager, but due to moving between parents in a divorced family, I have lost track of all of that info. My daughter is getting to the age that she wants to know the family history. I would be happy to help fill in any info that I recall, or any recent names that you don't have. Please help if you can.