Donald Sage Mackay is one of only three recent holders of judicial office to have been a member of the SSC Society, the other two being Lord Minginish and Lord Mulholland. Donald Mackay was born in 1946, attended George Watson’s College and graduated from the Universities of Edinburgh and Virginia. He qualified as a solicitor in 1971, joining the firm of Allan McDougall, and was a member of the SSC Society from 1973 until 1976 when he was admitted to the Faculty of Advocates. He took silk in 1987. He held several important appointments, especially those of Solicitor General for Scotland (1995) and later Lord Advocate (1995-97). In the latter capacity in 1995 he was created a life peer. Lord Mackay was appointed as a Judge of the Court of Session and the High Court of Justiciary in 2000 and retired in 2013. He retained a lifelong interest in the SSC Society and held his retirement dinner in the Library. After a long illness Lord Mackay died on 21 August 2018.