I did find william lafountain and others in the 1920 and 1910 cencus for essex county. I was going through them page by page. When it was translated there was a typo so doing the normal search by name did not pull it up. I also spoke with my uncle today who told me that are still LaFountains by him in the champlain area there are 2 diff families. He is goin to send me some pictures as well as talk to some of the LaFountain side of the family to see what other info they have. He is going to be emailing me. I will post any info he can get me. I did inform him that you are trying to trace that side of the family. so hopefully i get some info that will help you.