I have a question, regarding Griffith's Valuation. My sister found our GGGrandfather listed, along with some other members of his Family, we assume, listed in the 1857-58 Griffith's Valuation, in Trila Dillon, County Roscommon, as tenant farmers. In emailing some people for help, she was informed if they were tenant farmers during those years, there should be a record in the "Cancellation Books". My guestion is "What are the "Cancellation Books", and, where can we locate them?. My sister is planning a trip to Ireland, in the Spring of 2009, to visit her son, who will be attending the University of Limerick, starting in January, 2009, through the Summer of 2009.
Thank you for any help you may give me.