Donald M. Johnston

​Donald M. Johnston has served as a director of the Company since November 1983. Mr. Johnston is President of Massey Burch Capital Corp., a venture capital firm. He served as President of Massey Burch Investment Group, Inc., a venture capital firm, from 1990 until December 1993 where he had been a principal since 1982. Prior to that time, Mr. Johnston was the President of InterFirst Venture Corporation, a venture capital subsidiary of Interfirst Bancshares, Inc., and the Executive Director of First Dallas, Ltd., a corporate finance group in London, England. Mr. Johnston holds a B.A. degree from Vanderbilt University and an M.B.A. degree from Southern Methodist University.