I have just joined RootsChat and saw this thread.
I know a lot about the origins of these MITCHINSONs. They originally came from Cumberland and were Quakers. I have an extensive family tree for the earlier generations. However, they are not (as far as I know) related to my husband.
If you are interested, please send me a message with your email address, and I can email you the tree that I compiled many years ago.
