Mrs Gregory, who volunteers for a support service for the elderly back home, first found Cobblestones when she was out on a walk.
"I asked if they might need some volunteers, and they said, 'Yeah, come in'.
"I loved it. When I went back, I got my daughter to email me articles about Cobblestones so I could see how it was going."
As a volunteer, Mrs Gregory's role involves unlocking all the on-site buildings, tidying up, greeting customers and showing guests around the premises, including a colonial cottage, Wairarapa's first Methodist church and the Mangapakeha country school.
She said the "old worldly feel" of the museum reminded her of preserved colonial villages in England.
"It's just how I imagined New Zealand would look like in the pioneering days when the Greys came over.
"It's like stepping back in time.
"I haven't met anyone who hasn't been delighted by it," she said.
Except, of course, the odd child terrified by the teacher mannequin in the school house.
"A child left a note in the guest book saying, 'That teacher was scary'.
"That mannequin's head droops a lot, so we volunteers have to make sure it's in place."
Mrs Gregory said she had enjoyed hearing people's positive feedback on Cobblestones but the museum was in need of more visitors.
"I keep meeting people who say they have never been.
"We get a lot of people coming through from Wellington but if you're local you don't always appreciate things like this, as they're just there.
"Cobblestones [represents] the foundation of Greytown. It's important for the community to promote it."
Mrs Gregory, who heads back to Britain in March, said she enjoyed the friendliness and laid-back pace of Greytown.
