Auguste Vachon holds a master's degree in history from the University of Ottawa. He joined the National Archives of Canada in 1967 as keeper of heraldic collections. With the creation of the Canadian Heraldic Authority in 1988, he was appointed Saint-Laurent Herald and Registrar, a post he held until his retirement in 2000. The governor general of Canada then named him Outaouais Herald Emeritus. He has advanced the knowledge of Canadian emblems by numerous publications in Canada and abroad, as a speaker at several international congresses and by doing research for exhibitions in the field. A number of his articles and works are available on the site: Heraldic Science héraldique. The Canadian Museum of History has acquired the large collection of heraldic ceramics (more than 1100 pieces) assembled by him and his wife, Paula Gornescu-Vachon, a gift that the Canadian government declared to be of national importance. He is a Fellow of the Royal Heraldry Society of Canada and an Associate Member of the Académie internationale d’héraldique.