Prior to the Plantation of Ulster, Kilcronaghan was part of the ancient Irish district of Glenconkeyne. Along with this the termon or erenagh lands of the parish consisted of the townlands of: Ballintrolla, Derrekerdan, Dirrygrinagh, and Kellynahawla. With the plantation these townlands passed into hands of the Bishop of Derry, however from the mid-17th century their names had become Granny, Mormeal, Tamnyaskey, and Tullyroan. It is impossible however to determine or match which townland corresponds to which of the older names.
