Can I Please Have Some Information on Thomas Liddy Leddy

I know he was born in May 1819, CASTLERAHAN, Ireland. Married Ann, 18/5/1838, and came to New Zealand by ship, ending up in Wellington. I am unsure of which ship, so if anyone knows this would be awesome. I know of two children - Michael Liddy, and Francis Liddy, born 1853 and married Emma Sarah Page (my great-great grandparents). Thomas is buried at Mount Street cemetery, Wellington (Thomas Leddy, spelling changed at some point). I would love to know who his parents were, more about his wife, and if they had anymore children. I would also like to know more about Michael. I have come to a grinding halt in my research as I am unable to read the Gaelic records, and with very common names, New Zealand records are restricted.