A member of the Bradshaw Mountain Lions Club, Preston has been a Lion since 1974. He has held many offices in the association, including club president, zone chairperson, district governor and council chairperson. In addition, he has served as leadership, Lions Quest and MERL chairperson for his multiple district. He was host chairperson of the 1994 International Convention in Phoenix, Arizona; chairperson of the 2003 USA/Canada Lions Leadership Forum in Portland, Oregon; and a national multinational coordinator for Campaign Sight First II, where he exceeded his goals.
In recognition of his service to the association, Preston has received numerous awards, including the 100% Club President Award, the 100% District Governor Award, a Medal of Merit, six International President’s Awards and an Ambassador of Good Will Award, the highest honor granted by the association to its members. He is also a Progressive Melvin Jones Fellow.
In addition to his Lion activities, Preston is a past president of United Way of Yavapai County and a former board member of the Lions Foundation of Arizona. Vice President Preston and his wife, Joni, also a Lion and Melvin Jones Fellow, have two sons, one daughter and five grandsons.