David Douglas McLean, PhD, PEng, FCIC, passed away peacefully on Jan. 21, 2025, at the Granite Ridge Community in Stittsville, Ontario.
The eldest of four children, David was born in Belleville, Ont., to Douglas Stewart McLean and Bernice (Bunny) McLean (née Button). David attended Moira Secondary School, where he excelled in academics and athletics. A letterman, he represented the school on the basketball team and competed at the provincial level in track and field. David enjoyed playing hockey with his father and brothers Rick and Don. He was a motivated and industrious child, saving his earnings to purchase Fudgsicles on Fridays from the school cafeteria.
As a student in high school and university, he worked at the Belleville Entomology Lab and Corby's Distillery in Corbyville, Ont. He pursued higher education at Queen's, where he earned his PhD in Chemical Engineering.
David began his professional career as manager of quality control at Lynn Macleod Metallurgy Steel Foundry in Thetford Mines, Que.
In 1977, David was asked to join the University of Ottawa's Department of Chemical Engineering, as a professor. Over a distinguished career, he served in various leadership roles as department chair, director of Graduate Studies, director of Co-op, vice-dean of Engineering, and dean of Engineering. David carried out collaborative research, teaching and consulting with numerous companies and governmental organizations, including NORTEL, INCO, SPAR, SHELL, the University of Ottawa Heart Institute, CANMET and the Canadian Conservation Institute. David's dedication to the profession extended beyond academia; he was a leader of The Corporation of the Seven Wardens, presenting new Canadian engineers with their iron rings, and in 2000 he was appointed a Fellow of the Chemical Institute of Canada.
David presented popular public science lectures aimed at engaging youth and starred as the host of children's television science programming for TVO Kids.
David's love for sports endured throughout his life. He coached his sons' T-Ball, softball and basketball teams to numerous successes, inspiring them to successful coaching roles as adults. A lifelong football fan, David held an unwavering allegiance to the Minnesota Vikings, which began when he first watched Fran Tarkenton play. He also enjoyed hockey, cheering for the Chicago Blackhawks, before proudly embracing the Ottawa Senators, much to the disapproval of his wife, Ann Merry, herself a lifelong Leafs fan. Despite his own sons' best efforts, he remained the superior hockey player in the family.
Music was another of David's lifelong passions. He earned advanced qualifications in organ and piano from the Royal Conservatory of Music and spent his youth subbing as an organist across the Anglican Diocese of Ontario to fund his education. David sang in church choirs from the age of eight, and as an adult sang with multiple cathedral choirs with whom he toured Canada, the U.S. and England.
An avid outdoorsman, David held a hunting licence and loved camping and canoeing. His love of nature was evident from a young age, when he enjoyed making open fire maple syrup and trapping rabbits outside Belleville. He met his wife, Ann, at Camp Hyanto in Lyndhurst, Ont., where she was the waterfront director and he was the sports director. Together, they travelled across Canada in a two-person tent, exploring the country from coast to coast.
David is loved, missed and remembered by his wife, Ann Merry, with whom he celebrated their 55th wedding anniversary on Aug. 23, 2024; his siblings, Richard (Helen), Donald (Patti) and Elizabeth (Graham); his children, John (Robin), Rob (Milo) and Jaime (Michelle); and his grandchildren, Charlotte and James.