Correspondence, minutes, reports, manuscripts, photographs, audio tapes, clippings, etc., related to Van Kampen's responsibilities on the Board of Directors of the Billy Graham Evangelistic Association as well as various board committees, the boards of BGEA subsidiaries or affiliated institutions (Billy Graham Benevolent Fund, Billy Graham Evangelistic Film Ministry, Inc., Billy Graham Evangelistic Trust, Billy Graham Foundation, Grason Company, World Evangelism and Christian Education Fund, World Wide Pictures, World Education Fund, World Wide Pictures, World Wide Publications), and Wheaton College's Board of Trustees. The documents focus on the administrative and planning aspects of these institutions. Information is also available on Billy Graham, the Billy Graham Center, and the 1966 World Congress on Evangelism in Berlin. There are restrictions on the use of this collection.

Topics covered in the collection include: the variety of involvements that these responsibilities included, such as 1966 World Congress on Evangelism, 1974 International Congress on World Evangelization, development of the Billy Graham Center at Wheaton College, and production of DECISION magazine; also documented is the administrative and financial planning of the BGEA and its subsidiary companies including World Wide Pictures; materials focus on administrative aspects of BGEA and other institutions and not Van Kampen's personal life or business.  Also contains 6 audio tapes of radio broadcast, "Windows on the World" which include segments on 1966 World Congress of Evangelism in Berlin, an interview with two converted Auca Indians, and comments on the use of music for evangelism. Prominent people mentioned include Billy Graham, V. Raymond Edman, and Bob Jones, Sr.