fermanagh

I am trying to trace the Griffith family that I believe lived in Enniskillen in the early 1840's. My great-great grandfather and my great-grandfather came to Canada in 1848 according to one census that I found them on. They settled in New Brunswick. I don't know how many of the family immigrated. I can find no trace of them. They could also be listed under the surname "Griffin." Both of their names were William, the g-g-grandfathers second name was John. If anyone has any information, I would be very grateful to hear from them. My e-mail address is brlowe@telus.net.
Thank you.
Bev Lowe