This fonds provides information on the history of the Fort William Mission and the surrounding area. It contains historical brochures and diaries about the Fort William Mission. It documents the missionary activities of the region. It also provides an account of Jesuit activities with the Indigenous communities in the area, including marriage licenses, lease agreements, and various contracts.

The fonds contains some correspondence of Nicolas Fremiot, S.J., detailing his activities in the region, as well as other correspondence by Jesuit priests involved in the Northern Ontario missions.

This fonds provides information, including publications, on the history of Manitoulin Island, Wikwemikong, and other communities of Northern Ontario. Furthermore, it provides an account of the erection of the Jesuit Holy Cross Mission at Wikwemikong. It documents the activities of the parish of Holy Cross via administrative and financial records, and marriage and baptism records of members of the community. In addition, the fonds provides information on the Wikwemikong schools administered by the Jesuits.

The fonds contains correspondence and notes of Jesuit priests, including diaries, concerning the activities of the Wikwemikong parish, and of other northern Jesuit missions. Accordingly, the fonds contains records on the Gore Bay parish, Killarney, Batchewana, Little Current, Killarney, Spanish River, and Lake Huron North Shore missions, among others. Moreover, the fonds includes documents on the celebration of the Holy Cross Mission, and on the church at Wikwemikong. The fonds also contains photographs that document the different northern missions, as well as photographs of church buildings and parishes’ communities.