Re Richard Thomas De Silva - assuming this is the R T De Silva you are looking for. He was not born in New Zealand, but in Ceylon (Sri Lanka). He came here on his own and was born in either 1855 - according to his Marriage in 1882 at the age of 27, or 1844 - death cert states 1926 and 82 yrs old. If you do the math you will see why I said either 1855 or 1844. Family lore says he didn't initially want to be found so it could be that he was older than he said he was when he got married.