Alexander, son and heir of the preceding, is found at various dates between 1430 and 1473. He was connected with the Hays and Forbeses of Aberdeenshire, gave a bond of man-rent to Sir Alexander Forbes in 1430, and is mentioned in it as son and heir of John Ogiston. He is witness to a charter of Slains 1457. He sold to James Innes of Innes, under redemption, the lands of Ogiston in Morayshire, reserving the orchards and chief chymnis, with the consent of John Ogiston, his son and apparent heir.