There was no fire service in Tīrau at the time, so his father, a businessman, called a town meeting and asked the community if they wanted and needed a volunteer fire brigade.
“The outcome of that was, yes, we certainly do so,” said Cotter.
He joined the volunteer service at 18, vividly recalling his first day.
“I progressed from being a cadet fireman through to being the chief fire officer.”
Before resigning, he was the chief in Tīrau for 13 years, one of the youngest in the country. He joined the Pāpāmoa brigade seven years after leaving Tīrau.
They built their own fire engine with only a one-inch air pump and a little water tank, which was sufficient. Not long after, the brigade purchased a standard fire trailer.
“Then we had this lovely little pump that pumped much more water.
“That really got us going.
There was little money for the fire service then, as the council and the larger municipalities ran it in bigger cities, such as Auckland.
“So we fundraised and all the usual things.”
According to Cotter, motor vehicle collisions were the main reason for the fire service’s callouts in Tīrau.
“Some horrific ones, buses and things, involving lots of people being injured.”
He recalled attending a fire at the Wairoa Dairy Factory, where they battled a blaze for days.
“It was just a huge fire. That was one of the biggest ones we ever saw.”
He would fly worldwide, visiting various fire departments and participating in the World Fire Fighter Games - winning gold in Canada for his age group in swimming.
Cotter said he always encourages people to join the volunteer fire brigade but stressed that it did not matter whether you were a permanent firefighter or volunteering.
“A fire’s a fire.
“If you’re not trained and you’re not capable of using the equipment to the best of its ability, well, you’re not doing the job.
He said people who have been in permanent fire brigades may leave and join the volunteers and volunteers take the permanent firefighter pathway.
The evolution of firefighter technology impressed Cotter, and they said things like the new breathing apparatus and portable defibrillators had been lifesavers.
“We fought all our fires in sheds with [banned insecticide] Dichlorodiphenyltrichloroethane (DDT) and all this other stuff.
“We had no breathing apparatus, just gumboots and shorts. It’s amazing we’re all still here.”
His days of getting on the truck with sirens blaring are behind him.
“Been there, done that. I’m the cleaning lady now.”