Alexander Keith appears at Netherthird in the 1851 census, where he is described as farmer of 500 acres and 100 acres of woodland. Perhaps this was not all at Netherthird, as he also occupied the neighbouring farm of Thornybank, and perhaps others. He was dead by 17th March 1852, when an advertisement asks for any claims against him.
The Aberdeen Journal of 14th August 1839 lists prize winners at the Garioch Farmer Club show held on 2nd August. AK wins prizes for best mare and foal, 2nd best horned cow, 2nd best 2 year old horned quey, and best horned bull of the Aberdeenshire breed. At the Banffshire Farmer Club show held on 6th August, AK won the prize for best bull.
He is mentioned like this in the newspapers a number of times over the years.