Letter dated July 1, 1987, written by John Burton to Ruth regarding smaller organizations joining GMU's Institute for Conflict Analysis and Resolution.
Letter dated April 15, 1987, written by John Burton to Ruth regarding support for the merger of two professional organizations with GMU's Institute for Conflict Analysis and Resolution.
Letter dated March 20, 1997, written by John Burton to John Groom regarding the Center for the Analysis of Conflict at the University of Kent at Canterbury,
Letter dated February 14, 1996, written by John Burton to Rich Rubenstein regarding University Press publishing Burton's Introduction to CR: Language and Processes.
Letter dated December 27, 1995, written by Richard Rubenstein and Frank Blechman to John Burton regarding Burton's contribution for a book about conflict resolution.