Looking for Bernard Otierney Annie Smith Ireland 1851

Bernard OTierney is my G.G.Grandfather & Annie Smith G.G. Grandmother Married in 1851 In Cavan Ireland Had 2 Sons Phill Tierney 1852 & James Tierney 1854, and we cannot trace them after 1854 until James came to Australia in 1878 He is my G.Grandfather. Phill went to America in 1890.