In 1917, Dewey met F. M. Alexander in New York City and later wrote introductions to Alexander's Man's Supreme Inheritance (1918), Constructive Conscious Control of the Individual (1923) and The Use of the Self (1932).
As well as his contacts with people mentioned elsewhere in the article, he also maintained correspondence with Henri Bergson, William M. Brown, Martin Buber, George S. Counts, William Rainey Harper, Sidney Hook, and George Santayana.