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 — 1984-1981
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