Yes, Fultonhistory has been extremely useful for many people.
OTOH, there could well be information that still exists from that time period which is not yet online. Perinton just got a new town historian, who may have records in his office. I was at his predecessors' many years ago. [http://www.perinton.org/Departments/hist/
Plus there is the Perinton Historical Society in Fairport which might have useful material. Perhaps (just perhaps) there might be school records or church record for that early a time.
Jacob appear in the online List of Monre County estates
France,Jecob. Perinton, died Nov 4,1853,
Widow,Emily France. Chlldren,both minors. Lucius E. end
Mergeret Arabelle France. (http://www3.libraryweb.org/lh.aspx?id=470901
). The actual papers are in the Surrogate's Court office, which charges 90 dollars for a search.