This good and gracious man died in his sleep, November 5, 2018, sheltered by the love of his wife, Barbara; his children, Sally (Luca Di Nicola ), Andrew (Barbara Eckert), and the late Stephen/Xanthra; h is grandchildren, Jo-Anna, Michael, Laura (Chris Mazurk), and Alex. Mac will be remembered for his cheerful outlook, his generous spirit, and his continuing explorations of the sciences, the environment, and human relationships. A private family service has already taken place. If so desired, memorial donations may be made to St. Joseph’s Health Centre or The Dorothy Ley Hospice, with deep appreciation from the family. We are comforted that Mac Mackay’s spirit will live on in the memories of all who knew him.