The archive comprises minutes of the joint meetings of the Provincial Boards for the two provinces and subsequently minutes of the meetings of the United Boards and sub-committees. The earlier minutes also cover meetings of the Board of Missions of the Canterbury Province, and the later volumes include early meetings of the Central Board of Missions.
Also includes correspondence of the Joint Secretaries of the Board of Mission of the Province of Canterbury, papers and correspondence in relation to a Survey of the Mission Field, and enquires into the supply and training of Missionaires.