A co-founder and continuous supporter of the successful BayCHI chapter, Don has been an active supporter of SIGCHI since its beginning. Don has tended to stay out of the limelight, preferring instead to take on the jobs that just need to be done. Don is especially proud that he helped influence the SIGCHI Executive Council to hold CHI in international venues, first in Toronto for CHI+GI 1987, and then in Amsterdam for INTERCHI'93. Don participated in the SIGCHI Advisory Board which was involved in the development of the infrastructure of SIGCHI and the CHI Conference. Don was also a longtime member of the SIGCHI CPC (Conference Planning Committee), involved in conference site selection, registration and served on many CHI conference committees.