I had to laugh when I found this forum - which Pierre?There were a number of Pierre de la Chaumette's!I finally did figure out which one you were all referring to.I descend from Pierre's brother Jean de la Chaumette.
I have information - too long to post here (8 pages) - 5 generations of your Pierre's ancestors - where you all then become de la Chaumette, instead of Delashmutt's.
It does include the Isaac de la Chaumette who patented a firearm system in 1704 in England.
It will also include some of the Huguenot information.
Drop me a line off list and will be happy to end it to you!