I am looking for a little information:

Patrick McShane
Born: Armagh Ireland 1796
Died: Rollingdam NB, Canada 1880

Married: Mary A.
Born: Ireland Date??

I would like to know who this Mary A. is (her maiden name would be nice) and possibly the parents of Patrick McShane.
Thank you very much for any information that you can give me. Even some guidance and recommended resources would be appreciated