Looking for Sandra and John Russell’s Children

My name is Tanya Pinto and I work for Public Trust in New Zealand. We are the executors of an estate here and Sandra and John Russell are the beneficiaries of this estate. I am aware that both of them have since passed so now I am looking for their children. If anyone knows them please pass on my contact details to them: +64 520 7275 or [reveal email] or call our toll free number [reveal tel] and ask for me directly. I appreciate any assistance this community can give me with this delicate matter.