Correspondence, itineraries, press cuttings and related items, including letters from his wife Florence Jewel Baillie, his brother Donald Macpherson Baillie, Mona Anderson, Henry Sloane Coffin, William Temple (the Archbishop of Canterbury), Violet Markham, John H Duncan, George Freeland Barbour and Cyril Forster Garbett (the Archbishop of York). Subjects include John Baillie's BBC broadcasts and Church of Scotland and YMCA matters.

Correspondence and related items, including letters from John Keith Benton, Hachiro Yuasa, Reinhold Niebuhr. Includes material relating to John Baillie's retiral, a visit to Hungary, student lists and documents relating to the establishment of closer links between the Church of Scotland, Church of England, Episcopal Church of Scotland and Presbyterian Church of England.

Correspondence and related items, including letters from his wife Florence Jewel Baillie, Matthew Black and Ian W Fraser. Includes material relating to the World Council of Churches, a visit to Argentina and documents relating to the establishment of closer links between the Church of Scotland, Church of England, Episcopal Church of Scotland and Presbyterian Church of England.