Have found out a few more facts about a Thomas Corrin and think he is the man we are looking for. His son William Charles Corrin was a master mariner 1891 Census and we now have confirmation that his father, Thos Corrin was a Master Mariner on an 1876 marriage certificate.

Thomas Corrin was poss. born about 1813 . so we shall now be tracing his Naval Career (if we can find stuff)

I will contact you regarding the information you have on the possibility of Thomas Corrin being on the vessel "Ruby"