There is a family of Potters living in 1800's in Swansea MA, listed as Mulatto and Black, which probably means they are mostly Native American. I found it because in the same household there are a couple of Mulatto Martins, that I am searching for. I found THIS message post becasuse you have Rensellear, NY listed, where my Martin familly members also lived. Interesting connection. If you find anything further, drop a note here and I'll see it. I'm typing this 7 yrs after your post. lol Good Luck.