The move brought him closer to his children, grandchildren and great-grandchildren, but also left him feeling idle and isolated.
"I'm not talking to anybody, I'm not seeing anybody, so I started looking for something to do. I saw that no matter what I wanted to do there was a group doing it that I could join."
The museum was just opening so Lathrope signed up for maintenance and restoration work, and a regular stint on the front desk.
He also polishes brass and silver and restores furniture for the op shop.
"I get pleasure out of making things look good again – I get pleasure from other people's enjoyment. I like exercising the skills that I have."
Talking to Lathrope is a lesson in living and ageing well - keep busy doing something you enjoy, stay connected to people - is his advice, and volunteering has provided him with the opportunity to do that.
"Volunteering is just a continuation of how I've lived my life. It's the way I am - I like to be part of things. Without volunteering I don't know what I'd do. It's a very important part of my retirement."
Fulfilling volunteer roles can be found through the Kaipara district. Jump on the Volunteering Northland website at https://volunteeringnorthland.nz/ to view them all, or phone 0800 865 268.
By Helen Frances, for Volunteering Northland.