Hi,
I know nothing about Delma and Wyvern except that Wyvern died in 2002 and that Delma died in Whakatane. There is a tree on ancestry submitted by someone called Bennyworth and he refers to Wyvern as 'Bob'. I've tried to contact him but with no success. Delma came to the UK in 1957 and according to the passenger list she was a typist and was planning to stay for 12 months. I assume she woulod have spent some of that time here in Nottingham.
Thanks again for your interest it is most appreciated.
regards
Alan Russell