Looking for Information on Matheson Wairarapa New Zealand

Archibald Allisdair Matheson was a flying officer in the RNZAF with the Number 692 squadron in 1944.
He was shot down over Germany 7th November 1944 - he was 29 years old

I would like to know about his wife Ethel Jeanie Smith who was living in Featherston, Wairarapa at the time of his death
Did they have any children? etc

I would also like to know more about his parents: Duncan MATHESON (1875-1931) & Beatrice Ann McPHEE (1893-1965) they both lived and died in Carterton
At this time I only have 2 children for them - Archibald, as above and Donald Hugh Matheson (1916-1961) married to Amy Hurley - did they have any children?