Andrew C. Twaddle
1938 - 2020

John F. Galliher
1937 - 2019

Donald O. Granberg
1941- 2019

Peter Hall
1934 - 2017

Ted R. Vaughan
1933 - 2017

Barbara J. Bank
1939 – 2015

Bruce J. Biddle
1929 - 2016

James L. McCartney
1936 - 2012