Bergin/McLaughlin Laois

I am trying to locate information on the family of my great-great grandmother, Anne Bergin.

Her family emigrated from County Laois to the Miramichi area in New Brunswick, Canada between 1818 and 1822.

Her father, John Bergin, was born in County Laois @1787. He married Elizabeth McLaughlin and the couple had at least three children born in Ireland. Finton, born @1808; Patrick(Jon's ancestor I believe) born 1812; and Anne born @ 1816. The Bergins were Roman Catholic.

John Bergin came to the Miramichi area in 1818. Elizabeth, Finton, Patrick and Anne came in 1822.

I have reviewed the link to Roots Ireland and it looks like two John Bergins were born in 1787 in the parish Rathdowney.

I havent had any luck on Roots Ireland locating a marriage certificate for John Bergin and Elizabeth McLaughlin.

I have seen the post by Jon Bergin and the response. I am posting her to see about other connections in Laois.

Looking for any guidance available. Thank you.