Hi Monica,
I believe that the 1851 census information is my relatives, as I have solid information that Dugald was a shoemaker when he came to Australia. The link that you mention is one which I put, yes. You mention a family tree. Is that a seperate link to the "familysearch" link that you have on your post? If so, I would be interested to look at this tree. I know that Dugald and Margaret had a son, Daniel, whilst in Scotland, but I think he must have died at about 1 year of age. I have records of Dugald travelling out to Australia about 15 months before his wife travelled out with their next child Charlotte (who was 3yrs at the time). I have been able to trace most of the family's movements until their deaths, except for Dugald. Although I do have some information on him, and a court case he was involved in, and all the comments he made during it. I would love to find solid information on Dugald and Margarets parents. Margaret McGowans maiden name was McNeil, and her mother was Elizabeth, and her father was Charles Toner, though I cannot find them anywhere.
Cheers,
Jenny