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.
William Johnston - the younger of that Ilk, the eldest son of the last
mentioned James, married Margaret, daughter of Alexander Hay of Dalgaty (a cadet
of the family of Errol) by whom he had one son named George and three daughters
1) Bessy 2) Margaret 3) Violet. This William, a loyal and gallant gentleman,
fell as his grandfather had done, in the cause of his country, on the field of
Pinkie, 10th September 1547.