I have continued my reasearching into the above families.
I am looking for the ancestors of John O'Donnell who married Bridget Franklin in St Mary's Chapel Cahir September 5th 1875. On the marriage certificate the father of the Groom (John O'Donnell) and not Martin as I original thought. As I said before all I have to go on is the names of this one family (mother / father and children)
I did find a John Donnell baptised June 1850 - Father John Donnell and Mother M. Tobin
The Sponsors are John Casey and M Ahearn - Priest Step M. Lonergan
register states the family name is O'Donnell
On the 1911 census there is a William Tobin - Boarder - age 57 RC living with The O'Donnell family in Upperabbey Caher. Could this be a relative of M Tobin Mother of John Bapt/ 1850 and could it be the family I have been searching for.
I would appreciate your opinion