 Fox Movietone News, silent-film revivalist Paul Killiam, and National Telefilm Associates joined Hal Roach as important sources for Blackhawk's releases.Other rare finds were offered to Eastin by private collectors, for reprinting in the home-movie gauges.Since the late 1960s, David Shepard of the American Film Institute had been working closely with Kent Eastin to ensure permanent preservation of Blackhawk’s unique original films at the Library of Congress.