Hi Elayine, great question! I haven't had a lot of success finding much information about Norfolk Island online, so would also love to know more about where to find resources relevant to Norfolk Island. Hopefully there is a Norfolk Island expert out there who can enlighten us!
Were you looking at finding out more about his life on Norfolk Island, and/or if he married or died there? I think my first port of call would be the State Library of NSW, and probably the library at the Society of Australian Genealogists, which isn't that far from the State Library.