The book presents the 47 religious orders that have operated in French Ontario since
the first catholic presence in the province in 1615, when Joseph Le Caron celebrated
the first mass. The author first gives an overview of the various areas of activity:
evangelization, colonization, parochial work, education, health and social services,
contemplation. Then follows a brief history of every religious order, with a detailed
list of the places where they have operated.