Source: Johnston, Alexander, Jr., Genealogical account of the family of
Johnston of that ilk, formerly of Caskieben, in the Shire of Aberdeen, and of
its principal branches. Edinburgh, 1832.
Thomas of Craig Johnston - eldest son of John Johnston and Katherine Lundie
of Lundie, his second wife. This gentleman, on 29th November 1615, was served
heir in general to his father John Johnston of that Ilk. There is contained in
the records of the Great Seal, a charter of confirmation "Thomae Johnestoun,
fratri germano Domini Georgii Johnestoun de eodem et Caskieben, dimidietatis
baroniae seu forrestae de Cordyce" in Aberdeenshire dated 9th July 1631.
Playfair says that Thomas received, in virtue of his mother's marriage contract,
the lands of Craig, part of the barony of Caskiben; and by title he was
afterward designed. Thomas Johnston of Craig is mentioned as one of the
committee of war for the shire of Aberdeen, anno 1646, and again in the same
capacity, anno 1649. He married Mary, daughter of Irvine of Kingcausie, in the
Mearns, a cadet of the family of Drum, by whom he had 4 sons and 3 daughters:
Thomas of Craig - he was, 8th January 1664, served heir in general. He died
unmarried, William of Craig, John of Bishoptown who carried on the family line,
James lister of Aberdeen, and the three daughters names are not known. Thomas of
Craig died in August 1656, his wife, Mary Irvine died in September 1659. On his
death he was succeeded by his eldest son, Thomas, but the line of the family was
carried on by his third son, John Johnston of Bishoptown.