Newell Gascoigne

I am trying to find out where my great great grandfather came from. I know that he was born in 1824 and lived in Auckland NZ from the early to mid 1840s. He was buried in an Auckland Irish Church in 1864. There is no mention on his death certificate of where he was born. He may have gone from Ireland to Australia before going to NZ. He was a Seaman and Sawyer. The Gascoigne name is spelt different ways (Gaskon, Gascoyne).