I ran across your line of the tree while searching for Sime in Dundee. I saw a will of Crawford Sime of Dundee on the ScottishDocuments website. I am sure it will have much information for you. I have always believed this line was connected with the line I am searchinf for but I have yet to make the connection. Let me know if I can be of more help. The Sime line I am searching is John Sime of Dundee born about 1810. He married Ann Duncan in Dundee.
Thanks, Robbi Hoy