John White 1834 or 1841

Hello

I am searching for any information on John White son of John & Hannah White .

He was aged 25 on his marriage certificate in 1865 which would make a DoB 1840-41 but on his death cert he was 82 in 1916 which would make his DoB 1834.

His family is likely to be Protestant

He emmigrated in 1862-3 to Australia to the gold fields and then went on to Otago and Southland , New Zealand.

Any information would be greatly appreciated .

Kind regards

Sarah J , Brisbane