Donald H. Avery, who spent thirty-five years as a history professor at Western University, has a special interest in Canadian social and environmental history. In addition to Protecting the Ontario Niagara Escarpment, Avery has authored many scholarly papers and articles as well as several books. These include Pathogens for War: Biological Weapons, Life Scientists and North American Biodefence (2013); Reluctant Host: Canada's Response to Immigrant Workers(1995); and The Science of War: Canadian Scientists and Allied Military Technology during the Second World War (1999), which was nominated for the John a. Macdonald Prize in Canadian History in 1999. Avery and his wife have lived in Collingwood, which lies along the Niagara Escarpment, for almost two decades. An avid hiker, he has travelled along and enjoyed the beauty of the escarpment and been involved with several conservation groups working to protect the area's natural environment.