Hello,
My husband is a direct descendant of William Mather Letts and Minnie Emily Letts who came to NZ from Warwickshire, England in the late 1800s. They lived out their lives in Waimamaku. They had a shop there and William was the postmaster for the area. We only discovered this family link last year when I started a family tree. We went to visit Waimamaku and were thrilled to see the building that was the second shop the family owned (the first one burnt down). We also met descendants of a number of families who lived in Waimamaku when our Letts ancestors were there. It was an amazing experience.
I see that your post was from 2016, but I hope you get this message. I would love to see any digital photos if you have copies.
Thank you and best wishes