In 1969, the firm suffered the loss of its distinguished Founder and first President Mason G. Lockwood. Since his death the leadership of the firm has been as follows:
Frank H. Newnam, Jr.
President — 1969-1973
Chairman of the BOD — 1973-1974
Edward A. Brinkman
President — 1973-1974
Chairman of the BOD — 1974-1975
Bill W. Klotz
President — 1974-1984
James K. Wilhelm
President — 1984-1991
Chairman of the BOD — 1991-1992
James R. Cole
President — 1992-1997
Chairman of the BOD — 1997-1999
Dennis W. Petersen
President — 1997-2017
Wayne Swafford
President — 2017-present