Ballinderrig is marked on the first edition Ordnance Survey map and was occupied in the mid 19th century by Jane Cantillon. She held the property valued at £13+ from Eliza Bury. Catherine Cantillon was also resident in the townland at Courtstown Cottage Grid Ref W774 720. By the publication of the 25-inch Ordnance Survey map in the 1890s the latter property has become known as Courtstown House. It is still extant.