McDonald & Lyness & Gunnis (Gunness) families

Trying to find birth record of Mary S. Gunnis c1812 believed to be from Armaugh family immigrated to Canada before 1831 she married Daniel McDonald in 1832 in Canada but was   believed living in Armaugh around 1810. Prior to that he may have come from Scotland. 

also Jane Lyness b 12 Jul 1833 Lurgan Co., Armaugh emigrated to Aust before 1857 need birth proof and parents believed to be William Lyness & Helana Llavery