Mary Cooke b.1786

I am looking for info on Mary Cooke b.1786,possibly in Tipperary. Mary married John Dulmage/Dolmage/ about1820.They had 5 children at least. Christopher b.1821 ,Mary b.1821 ,Adam b.1827 ,Catherine b.1833 ,Sarah b.1934. I believe they left Tipperary sometime after 1834 and before 1843.They livedin the Colborne,Ontario,Canada area.