I found several of the Pinkham name listed in Records of the Friends "Quakers" in Vassalboro, Maine from the 1700's all the way up to the very early 1900's. Apparently there was quite a large Quaker community there at one time...might still be I don't know. This came from an Old 'Register' at the NEHGS. If you can get access to it, it might provide some info for someone looking for Pinkham's from the Maine area. The Register of April 1914 Vol. 68 pg. 162 is the beginning of the listing and the last is concluded in Oct. of 1915 Vol. 69 pg. 319. I think there are about 5 families of Pinkhams that were in this listing.