Maybe you can help, a friend Catherine Plumadore a few years ago asked me to trace her ancestors, at the time we hit a wall. Her ancestor Jean Plamondon/John Plumadore was supposed to have emigrated from the Cornwall region to NY state. I wonder if he was of any relation to your ancestor Edward. Our biggest problem was we were never able to find the link between John Plumadore and Philippe Plamondon from France, were you able to do this with your ancestor. After Cornwall the link died out for us in Canada. Hope you can help, a modern day Jean Plamondon.