General Assembly consists of:

Correspondence, press cuttings and related items, including letters from Reinhold Niebuhr, David Smith Cairns William Temple (the Archbishop of Canterbury), the Duke of Montrose and various publishers. Much of the correspondence relates to Church of Scotland business, including John Baillie's appointment as Moderator Designate of the General Assembly of the Church of Scotland and as Corresponding Member of the General Assembly of the Presbyterian Church in Ireland.

Correspondence, press cuttings and related items, including letters from his brother Donald Macpherson Baille, Alexander Martin, Reinhold Niebuhr, Henry Sloane Coffin, William Temple (the Archbishop of Canterbury) and the Duke of Montrose. Much of the correspondence relates to John Baillie's appointment as Moderator Designate of the General Assembly of the Church of Scotland.

school and university notes; awards and achievements; lectures, addresses and broadcasts; sermons and prayers; manuscripts of published works; papers relating to the World Council of Churches, British Council of Churches, General Assembly of the Church of Scotland and other organisations; personal and professional correspondence