Bachelor of Science, Sir George Williams U., Montreal, Quebec, Canada, 1957; Doctor of Philosophy, University of California at Berkeley, 1962; Doctor of Science (honorary), University B.C., Vancouver, Canada, 1997.
Public school teacher, Olds School Division, 1949-1952; junior high school teacher, Calgary School Board, Alberta, 1953-1955; chief taxonomy section, research branch, Canada Agricultural Department, Ottawa, Ontario, 1962-1968; director Botanical Garden, professor botany, professor plant science, U. B.C., Vancouver, 1968-1985; president, Chief Executive Officer, Chicago Horticultural Society, 1985-1994; director, Chicago Botanical Garden, Glencoe, Illinois, 1985-1994; executive director, Rancho Santa Ana Botanical Garden, Claremont, California, since 1994; professor botany, chairman botany program, Claremont Graduate School, since 1994. President Western Botanical Superior vena cava syndrome Ltd.
Member State of Illinois Board Natural Resources and Conservation, 1987-1994. Trustee Nature Illinois Foundation, 1990-1994. Fellow Linnean Society London.
Member Canada Botanical Association (president 1967-1968), Biological Council Canada (president 1973-1974), American Association Museum (accreditation committee 1980-1985, chairman 1985-1991, chairman ethics commission 1991-1993), American Association Botanical Gardens and Arboreta (president 1976, 77, award of merit 1987), Claremont Chamber of C. (board directors 1995-1998), Ottawa Valley Curling Association (president 1968-1969), B.C. Society Landscape Archs. (honorary), University B.C. Botanical Garden (honorary), Chicago Hort Society (life, medal 1994), Governor General's Curling Club Canada (life), University Club Claremont, Men's Garden Club Los Angeles.