Edgar Toop
EDGAR W. TOOP is a professor emeritus from the department of Agriculture and Forestry, at the University of Alberta. He has received advanced degrees in Horticulture and Plant Pathology, working as both researcher and educator in his forty year career. He has won awards for his horticultural achievements, and is an honorary life member of the Western Canadian Society for Horticulture.

Sara Williams
SARA WILLIAMS is a well known horticultural educator and writer in western Canada. She is a former editor of The Gardener for the Prairies and, before retirement, was the horticultural specialist with the Extension Division, University of Saskatchewan.