The fonds documents the activities of the St. Regis Mission in Ahkwesáhsne, and the relations and encounters of Jesuit priests with Kanien’kehá:ka people in the region. It contains records created, collected, and accumulated by the Jesuits in Ahkwesáhsne. The records include correspondence, books and manuscripts, pamphlets and booklets, dictionaries and lexicons, financial documents, newspaper clippings, and bulletins and records on the St. Regis church and community life. It includes photographs of Jesuit priests involved in the community and photographs of the St. Regis church. The fonds also includes Kanien’kehá:ka family photographs. The records range from 1806 to 1984.

The fonds is organized into the following six series:

Grammars, dictionaries, and lexicons
St. Regis Mission church and community life
Church’s sermons, prayers, and catechisms
Kateri Tekakwitha
Correspondence, manuscripts, and journals
Financial and administrative records