Perhaps my hard to find Sarah de LaFarge is related to your Rachel. Sarah was born about 1749 or 1750 supposedly in France. She married Silas Howland in 1768 in Dartmouth, Bristol Cty, MA. He was born in Dartmouth in 1749. Also, it is said she married a Dewell/Davol prior to Silas. I have hunted high and low. That is a surname of which there are not many. Audrey