Hi Tom
I have also been researching my family tree and Pierre Louis Gautier is a distant ancestor of mine.
The only info I have of him was that he was a french language teacher in Pell Close ,Doncaster, Yorkshire 1822 - 1829.He was married to Mary Ann (from Hull ??).Their daughter Fanny Laniot is my connection.
Do you have any more infomation on him ??, the family folklaw was that he was a captain in the French army.
Rgds.
Chris