Wow, I've just decided to start investigating the history of this great name of ours and tracing my roots and your site was the first I found. I had no idea that there were Postlethwaites in such numbers accross the pond.This gives me great encouragement to get started properly. It sounds as if you've you've got plenty of info. Even if it's not strictly relevant to my search it would be great to hear what info you do have!
My name is Justin Postlethwaite born Taunton, Somerset, England 1972 to Ian John Postlethwaite, son of Kenneth Postlethwaite