Correspondence and related items, including letters from his brother Donald Macpherson Baillie, George Arthur Buttrick, Bertram Christian, David Smith Cairns, Melville Dinwoodie (BBC), and Henry Pitney Van Dusen. Also correspondence relating to personal finance.

Correspondence, press cuttings and related items, including material relating to John Baillie's visit to Germany as part of a British Council of Churches delegation and letters from his wife Florence Jewel Baillie, his brother Donald Macpherson Baillie and Bertram Christian.

Correspondence and related items, including letters from his wife Florence Jewel Baillie, his brother Donald Macpherson Baillie, Mona Anderson, Bertram Christian, Leslie Bannister Walton, William Alexander Curtis, (Henry) Christopher Dawson and Sir Zwinglius Frank Willis (YMCA)