Meehan and O'Reilly

I am searching for my 4th great grandparents - Patrick Meehan & Mary O'Reilly.  It is my understanding that they were from the County of Fermanagh.  Their children are Barbara, Mary (1808 - 1889), Bernard (1815 - Aft 188), Patrick John (1816 - 1880) and Myles (1810 - 1900).  I know that Mary, Bernard and Patrick John were born in County of Fermanagh.  Barbara and Myles were also born in Ireland just not sure if it was in Fermanagh.

Daughter Mary Meehan married John Durnin (1812 - 1897) who was also born in County of Fermanagh where they also were married.

Daughter Barbara married Charles Kelly.

Son Bernard Meehan married Susan McHugh in Ireland, possibly County of Fermanagh.

Son Patrick John married Mary McGinnis (1821 - 1853) (1st marriage) and later Mary Durnin after the death of Mary McGinnis.  He wed Mary Durnin in Canada.

Son Myles married Catherine Mulhern (born 1835 in Ireland).

The Meehan and O'Reillys migrated to Huntingdon, Quebec, Canada in 1840 or 1841.

There was an Elizabeth (Bessie) O'Reilly that Married a man name McDermott.  Mary and Elizabeth O'Reilly were closely related, probably sisters.

I could also list some of their children that were born in Ireland if that would help.

Thank you for any help you can give in my search for my 4th great grandparents history.