The fonds testifies to the activities carried out by the Holy Cross Mission of Wiikwemkoong since its transfer to the Jesuits in 1844 and until 2004, and provides information on the history of Manitoulin Island, Wiikwemkoong and other communities of Northern Ontario. It provides information on the activities of the parishes Jesuit missionaries served via administrative and financial records, as well as sacramental registers that compiled data on the members and families of the communities. Thus, in addition to documenting the activities of the Holy Cross parish and missionaries, the fonds contains records concerning the parishes of Gore Bay, Little Current, Killarney, Batchewana, M’chigeeng, Sheshegwaning, Spanish River and Lake Huron North Shore, among others. It also contains records testifying to the Jesuits’ interest and implication in schools in Batchewana, Kaboni, Killarney, Sheguiandah, Spanish, and Wiikwemkoong.

The fonds contains diaries and notes taken by Jesuit priests concerning the activities of the missions and certain events. It also contains correspondence, parish communications, work documents and history notes, Status Animarum, Historia Domus, manuscripts, two publications, a prospectus, programs, architectural drawings and maps, as weel as photographs that document the different mission points, landscapes, church buildings, Catholic celebrations, events, and parish members and families.

The fonds testifies to the Jesuit presence in several communities in Northern Ontario since 1844. The material attests to the work of the Jesuits as missionaries and chaplains in the region of Lake Superior, Sault Ste. Marie, Manitoulin Island, and in the communities along the Canadian Pacific Railway, up until 2015. In addition, the fonds provides information on the Jesuit involvement and interest in setting up schools for the Indigenous children of the region, including the Spanish Residential School, as well as on the history of the region and on the Ojibwemowin language. Documents dating from the 1960s onwards show new reflections within the Jesuit community, leading to a shift in their approach to the work they carried out among Indigenous communities.

The fonds contains diaries and announcement books, personal and historical notes, correspondence, financial statements, annual reports, parish records, Status animarum, baptismal and marriage certificates, church visitors’ books, Jesuits’ vows, insurance policies, meeting minutes, souvenir brochures, programs, legal deeds and agreements, and contracts. It also contains audio reels and cassettes, videocassettes, objects, publications, maps, architectural drawings, photographs, slides, and negatives.