Looking for Michael Kelleher of Ireland

I am looking for Michael Kelleher, date of birth unknown. I can only ascertain that his wife's name was Mary Haley and she was born in Ireland. They had two sons, one being Timothy Kelleher, born in O'Mallow in 1856 and died 18/08/1939 in Queanbeyan New South Wales Australia. Timothy came to Australia on the Earl Dalhousie 22/07/1878. Timothy married Ellen Coppin and had ten children of his own.
Michael's other son was Cornelius Kelleher.