Located these marriages which may assist you.
Given Names Richard Allen
Spouse BLACKADDER, Ellen
Given Names Charles Maurice
Spouse DORNAN, Agnes Ellen
Given Names Raymond Archibald
Spouse EVETTS, Lily Alice Charlotte
Given Names Lenna Merle
Spouse CHALK, James
Have you checked Nz Archives for possible probates or Miltary records, these may help you to locate, children etc.
For example Lenna Merle CHALK, has a probate in Auckland dated 1990, and was cremated at Purewa Cemetery 24 March 1990.