1. Weaver, W. 1961.Year Book of the American Philosophical Society, 106–109. New York: American Philosophical Society. Much of Chester Barnard's background was gleaned from a biographical sketch found Other materials were found in unpublished private documents of the USO from various years, 1942-1945, and from private and confidential internal documents of the New York Telephone Company and the Bell Telephone Company of New Jersey acquired by the authors
2. The authors possess copies of these speeches — most unpublished — and articles
3. Weaver.op. cit.109