The only thing that mislead me was my 91 year old aunt who is still alive telling me that my GG grandmother was one of 9 girls born Inchee, Derrynane. She was in fact born in Ardkearagh. I have built up a parallel tree for the Sullivans in Inchee to try and work out the connection, so many bloody Sullivans. On top of that my mother's family are McCarthy and O'Connor's in West Cork.
I am going into the National Archives today to check the Calendars of Wills, I may pick up something from 1880 on.
Testamentary records were destroyed in the Public Records Office of Ireland 1922, thankfully, wills in centers outside Dublin still survive as they were held locally.