Hi Mike,
As I stated before I have not spent much time on the McGrath`s from Lisnagade, but I intend to.
Lisnagade is a townland c 4 miles from a town called Banbridge, Co. Down, 25 miles from Belfast. It has its own Roman Catholic chapel and graveyard where my ancestors are buried.
Lisnagade chapel is clericaly administered from Loughbrickland c 3miles away, under the records of Loughbrickland in the parish of Aghaderg, that is where you will find the Lisnagade records. I dont know what date the records started.
One way I find very useful for finding families in a certain area is to search for the houses in the 1901 and 1911 census, you should try Lisnagade, Scarva Down and the neighbouring townland Kernon, Tullylish, Down ( where my ancestors the McGrath`s and Lavery`s lived hence my username) to uncover surname groups then check who lived in that house.