Edwina and Ireton school winner

Obviously Edwina and Ireton Roche enjoyed school, I believe they both became teachers.
Ireton moved to Dunedin and didn`t marry or have children. He died at a young age. Edwina married William Nelson and lived her years out in greymouth. you can go to the tag on left and see her photo. I am in discussions with a few people why she has a dark complexion, maybe a few people can add some light to that question????