I am wondering how I can find more out about my ancestor, Margaret Connolly. She was from County Longford and the wife of Major Thomas Fallon. She immigrated to Huntingdon, Quebec with two of her children, Michael and Margaret Fallon before 1837.
On an 1841 marriage record, Margaret Fallon's mother is listed as "Margaret Connelley of the Count of Longford in Ireland".
I know that the Conolly family was connected to the Barons of Longford, but I don't know where to look next.