O'Neill Family, Enniskeen, Meath

Searching for information re. Wesley and Margaret Gordon O'Neill.  Margaret was from County Cavan, but we don't know where.  She and Wesley were married in Meath (again, we don't know where) around 1825.  We know they eventually were living in Enniskeen.  Before emigrating to Canada in 1842 they had four sons, Gordon, Henry, James, and John.  When being in quarantine at the Grosse Île Quarantine Station in Quebec, sons Henry and James died. The rest of the family proceeded on to Ontario where many of Margaret's family (Gordons) had already settled.  

I would appreciate hearing from anyone with knowledge of this family.

Richard Gordon, Pennsylvania USA