Looking for Nolan and McGrath information

My Grandmother, Elizabeth Nolan, was born 12 Dec 1909 in Bagenalstown, Dunleckney parish. Her parents were James McGrath date of birth unknown to me and Mary McGrath. I was told by my grandmother that her father was from Leighlhinbridge. He died a month before she was born. I am told that James Nolan's parents were James Nolan born about 1836 and Mary Ward. I was told they were from Leighlinbridge. James Sr's parents were William Nolan born about 1810 in Leghlinbridge and Mary O'Neill. Mary McGrath's parents were Patrick McGrath born ? and died about 1895 in Leighlinbrige and Eliza King born in 1860.

My name is BarbaraJo Caisse nee O'Connor from Coventry, CT, USA

I would appreciate any help you can give me in sorting out my great grandparents. Thank you.