Mr Bristow said he had been keen on cycling and they had had a tandem bike.
"Then my son Michael was born and we had a little sidecar on it. We would go out for the day."
The couple, who have two children Michael and Ann, met during World War II.
"I was in the Royal Navy at the time in England, and I was on a ship and was friendly with Molly's brother, he was on the ship too."
While home on leave Mrs Bristow's brother introduced them and they fell in love.
They were married on a wet and windy Sunday at the Eltham Parish Church in London.
Mr Bristow wore his only suit and his bride had to borrow a dress from a friend.
Mr Bristow said their move from England to New Zealand was a highlight of their 70 years of marriage, even though at first he was not impressed and wanted to go home.
They moved to be closer to family and because they thought it would be a warmer place to live. They settled in Auckland before moving to Rotorua in 1982.
The couple delivered Meals on Wheels for many years in Auckland and Rotorua, receiving a Community Award in 1999. Mrs Bristow also worked as a volunteer at the Red Cross for more than 20 years.