If the couple's easygoing banter is anything to go by, there should be plenty more to come.
Mr and Mrs Newton's honeymoon followed their wedding at St Clair, Dunedin, on January 29, 1951.
The mishaps began as the pair drove to Akaroa, when a stone shot up from the road and broke their windscreen.
In Nelson, they could not find accommodation, and were forced to stay in a tent they had packed for emergencies.
Heavy rain resulted in a soaking in the middle of the night, and when they moved to higher ground, wind that "blew like heck" knocked the tent down.
The next day their car broke down.
While they managed to get back to Dunedin in one piece, their move to a friend's house in Tahuna Rd, where they were to stay for two months, only continued their bad luck.
The couple awoke in the middle of the night to find the house in flames, and the next day little was left standing.
"So we had to stay together", Mr Newton joked.
The other key to their long marriage was being open, and sharing every facet of their life.
"We share everything," Mrs Newton said.
The couple, who had three children, met at a dance at the old Waitati Hall.
Mr Newton worked in the mailroom at the chief post office in the Exchange, and helped with the move into the building from the post office's former home in Garrison Hall, Dowling St, in 1937.
The new building in the Exchange was "awe inspiring", he said, and it annoyed him to see it in a dilapidated state.
Mrs Newton worked at a hairdressing salon in the old Stock Exchange building, and the romance blossomed, with only Water St separating the couple.
The pair were married in the former St Clair Methodist Church in Forbury Rd, and bought land from her father, who owned an acre on Cliffs Rd.
"We had to pay him a shilling for a quarter-acre section," Mrs Newton said.
"We built a house for 2550."
The couple, who still live in their Cliffs Rd home, celebrated their anniversary with family and friends.
