Question Author
Thank you for your speedy reply, Dot. Neither myself nor my 2nd cousins know anything at all about Lachlan, and although he was the brother of our respective grandparents, none of us knew of his existence until we started researching the family. I use Scotlands People a lot but haven't been able to find anything on Lachlan in any of the relevant categories, except the 1881, 1891 and 1901 census records. Considering Lachlan was my mother's uncle, I didn't know her mother had any siblings, and because I am now quite elderly myself, I have no family from whom to obtain information.
I know you are the site expert on Genealogy and I thought perhaps you might have an idea of somewhere I might try that I haven't already.
Thanks again.