American trip, 1941 consists of:

Correspondence and related items, including letters from his wife Florence Jewel Baillie, his brother Donald Macpherson Baillie, Sir Edward Victor Appleton, Henry Pitney Van Dusen, Hugh Martin and Thomas Forsyth Torrance. Includes material relating the University of Edinburgh, clothing ration books, a paper on eschatology and items relating to an insurance claim due to illness.

Correspondence and related items, including letters from his wife Florence Jewel Baillie, his brother Donald Macpherson Baillie, Mona Anderson, Ian W Fraser, Sir Zwinglius Frank Willis and Henry Pitney Van Dusen. Includes material relating to the World Council of Churches and letters congratulating John Baillie on being appointed Principal of New College. Also includes a paper, 'The Idea of Orthodoxy'.

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 and related items, including letters from his wife Florence Jewel Baillie, his brother Donald Macpherson Baillie, Mona Anderson, Bertram Christian, Henry Pitney Van Dusen and Henry Sloane Coffin. Also responses to John Baillie's tribute to Thomas Cockburn in The Scotsman and material relating to the International Missionary Council and to the wedding of Princess Elizabeth (now Elizabeth II).