The records contain: minute books of the Scottish Ecclesiological Society, 1904 to 1965, with 1935-1942 wanting; cash books of the Scottish Ecclesiological Society, 1911-1931 and 1934 to 1954; membership accounts of the Scottish Ecclesiological Society, 1903-1913 and 1924-1955; income tax records of the Scottish Ecclesiological Society, 1936-1963; correspondence of the Scottish Ecclesiological Society, 1957-1963; letter books of the Aberdeen Ecclesiological Society, 1891-1903, and the minute book of the Aberdeen Centre, 1949-1957; minute books of the Glasgow Ecclesiological Society, 1893-1922, and minute book of the Glasgow Centre 1948-1964, with additional correspondence loosely inserted; annual reports of the Society, 1937-1963; constitution, prospectus and papers on the aims of the Society; office of the Society, including office for the annual visit to Glasgow Cathedral; agendas for annual meetings, 1944-1964; notices and circulars to members, 1927-1965; invoices, statements of accounts, receipt books, pass books etc of National Bank and National Commercial Bank of Scotland, 1946-1965; list of members; list of members of council; programmes of meetings and excursions; photographs; miscellaneous letters, newspaper cuttings on Scottish churches of historical and architectural interest; and, correspondence of the Society.