In 1970, the first Hedley S. Dimock awards were given to to Julian W. Smith, Sigurd F. Olson, and Stewart L. Udall. Dr. Smith served as director of the Outdoor Education Project at Michigan State University. Olson was an American author, environmentalist, and advocate for the protection of wilderness. Udall was a representative from Arizona and secretary of the interior under Presidents John. F. Kennedy and Lyndon B. Johnson.
The Hedley S. Dimock Award  was created to honor persons who had made significant contributions to the camp profession through related fields such as outdoor education, conservation, recreation medicine, education, architecture, or the social sciences through administrative, legislative, or professional contributions or by participation in local, state, or national program development. The award also required awardees to be ACA members, with at least ten years of membership.