These are the papers of the Secretary-Treasurer for the period 1892-1955. They cover his financial and administrative activities, but do not include the Commission's official minutes, or records of individual schools. Financial records include assessment rolls, 1903-1925, a ledger of tax assessments and payments, 1911-1914, statements of revenue and expenditures, 1900-1910, 1918-1924, and a cash book, 1936-1943. Administrative functions are documented by correspondence files. Correspondents include the provincial Department of Public Instruction, the City of Lachine, teachers, banks, commercial firms involved in school maintenance, suppliers, other school boards, and parents. The emphasis throughout is on financial matters, personnel, and school buildings, with some material on curriculum, use of schools by outside groups, and student activities.