1743, Genealogy of Rev. John Sullivan of Sunville, Bandon?, 1875 Papers on Application of Rev. Leonard Leonard Leader Sullivan otherwise Leonard Leader, Honorary Chaplin of Volunteer Fortress in India, of Taking the Name Leader Instead of Sullivan.
This application was not uncommon the background inheriting property on the maternal line subject to a genealogical condition. A similar situation arose with McCarthy/Welply and further North Westmeath/Cavan in the Ancient Princes of The Kingdom of Breffni O’Reilly/Nugent.