Hi Mac,
Welcome to rootschat.
The only inscription with a reference to Cassisdy is as follows -
Erected by Michael Cunnian in memory of his children, Mary, died 17th May 1864. Aged 4½ months. Thomas, died 6th March 1865. Aged 1 day. Rosan, died 19th Jan 1863. Aged 9 months. And of Jane Conner, his wife died 18th July 1870. Aged 26 years. And of Rosan Cassidy, his wife died 5th July 1872. Aged 23 years. Michael Cunnian, died abroad.
Gerry