Hi I might be interested as I am researching Dobson for a friend, and the names you mention are found in his tree. Where (in what state, country?) did you purchase the pictures? I may be anavailable for a bit, but would probably arrange for the pictures to be send in ten days or so. Of course, if anyone comes forward with a direct connection, I would of course let them have the pictures. The Dobsons I am tracking started in Scotland, then went to Canada and the US. They tended to be in the woollen and textile business.
Thank you!