Conversation so far:
What was Edmund Hillary's personal life like?
Edmund Hillary married Louise Mary Rose on 3 September 1953, soon after the ascent of Everest
And how was Edmund Hillary's married life with Louise Mary Rose?
Edmund Hillary admitted he was terrified of proposing to her and relied on her mother to propose on his behalf.
What more is known about Edmund Hillary's personal life?
Edmund Hillary had three children: Peter, Sarah and Belinda.
What more is known about Edmund Hillary's children?
Edmund Hillary's son Peter Hillary also became a climber, summiting Everest in 1990.
What were Tenzing Norgay and Edmund Hillary doing in Kathmandu?
Louise Mary Rose and Belinda Hillary were killed in a plane crash near Kathmandu airport shortly after take-off.
Any interesting information in this section?
The Hillary family has had a connection with the west coast of Auckland since 1925

Question: What was this connection?
Self-contained rewrite: What was the connection with the Hillary family has had a connection with the west coast of Auckland since 1925?