Hi!
I came across this thread when googling for Andrew Turnbull Anderson and Louisa Stephenson. I'm researching my partners family, and his great great grandfather is a William Douglas Anderson, who married Janet Gartshore. When googling this William Douglas I found claims that Andrew Turnbull Anderson and Louisa Stephenson were his parents, but I haven't ordered certificates yet, so I'm not certain. I'm very interested to find out more about the family, and if you want to know more about William Joseph and Janets descendants, I'll be more than happy to help.