I would be grateful for some help tracing the birth of this man, Rubinstein Wells.
He married Annie Maud Duncan in 1914 and they had two children. He married Elizabeth Mooney in 1941. He died 9 Jul 1973 in Auckland. I have plenty of records to confirm those details but nothing to confirm his birth.
His WW1 NZ Service Records show his birth as 16 (or 18) August 1891 in Sydney, New South Wales, Australia but I cannot find any matching birth at
https://www.nsw.gov.au.
Some trees at Ancestry show his parents as Alban Douglas Wells 1857-1932 and Agnes Spensley 1859-1942 but all of that couple's other children were born in NZ, including Hector Valentine Wells born here 14 Feb 1890. I cannot see any record of this family travelling to Sydney and then returning to NZ around that time.
Any suggestions welcome !!
Thanks