The collection is composed of: in Bundles 1-10, personal letters from Harry Galloway, 1925-1939, and begging letters and appeals for help, personal correspondence addressed to Craig from all over the world, 1930-1939, used and unused postcards, letters of congratulation, 1938, and verse and miscellaneous papers of the nineteenth century; in Bundles 11-26, lectures notes on Genesis, Job, Amos, Ezekiel, St. Mark's gospel, Acts, 1st Corinthians, Hebrews, Galatians, St. Paul, miracle in the Old and New Testaments, history and religion of Israel, Israel in exile, and Psalter; in Bundles 27-50, sermons, letters and notes by Craig's father, Rev. Alexander McRae Craig, from 1864 onwards, notes and quotations from books created by Archibald Campbell Craig, some sermons and prayers by the younger Craig, and letters; in Bundles 51-93, personal letters including letters of condolence on the death of his mother, 1926, his appointment as Chaplain to Glasgow University, 1929, some verse, papers on the Church, 1950s, lectures and addresses, music book and some hymn tunes, a few photographs including photographs of celebrations of the Russian Orthodox Church, some Russian volumes, some sermons and addresses and talks; in Bundles 94-100, file labelled Scottish Churches' Council containing miscellaneous talks and papers, sermons, verse and notes, broadcast talks and sermons, file containing off-prints and talks, and an analytical concordance to the Holy Bible; in Bundle 101, personal letters from James Brown, naval surgeon to Margaret Brown, his sister, 1780-1784; in Bundles 102-103, miscellaneous papers and a plan for 'a ecumenical church in a Scottish new town'; and in Bundle 104, 15 letters from Craig to Robert. C. Mackie written from St. John's, Doune, Perthshire (one exception being Bank Street, Glasgow), the content of which is mixed but with many observations on ecclesiastical politics.