Sheila
From the Rootsireland.ie subscription site, the marriage of Joseph Mclean and Susan Beckett in 1879 shows the fathers name of both Joseph and Susan. It is not usual that the mother's name appears, although sometimes you can be lucky and the Church Record form has a space for mother name.
Joseph appears to have been a lot older than Susan, 1901 shows him 65yrs, his birth would be around 1835c I cant locate any birth record or for other siblings.
I found a note in Irish Newspaper Sept 1954 Birtie McLean from USA visited his uncle Bob Mclean of Capparany.
Another find was Bobs family originally came from Scotland but had lived in Turlough for several generations.