I've managed to track it back via my books, newspapers and censuses to 1813/1814 when it was advertised for sale in the Caledonian Mercury. I believe it was built on the land that Sir William Douglas acquired fron the Gordons in 1790-91 - see histories of Castle Douglas. In 1861, it was occupied by Capt James Stoddart, RN. I think he bought it soon after 1856 when the previous owner,
Hannay Inglis died (1856), and
? InglisHannay before then. The Valuation Rolls of 1865 have Stoddart as Proprietor/occupier.
I'll see if I can find any more but I think Lesley's suggestion is probably best. There is/was also a very good local studies section in the library at Castle Douglas - I was able to find a great deal there.
Gadget
Have names and dates on my other machine so will add them/amend if I've got this wrong
