Series illustrates Douglas' involvement with organization and administration of the N.D.P. It is roughly divided between the records of the party executive, the caucus, and the reference and information files used by both. It includes correspondence, minutes, press releases, articles, reference files, and assorted party documents. This series is divided into three sub-series: Office files, 1961-1979, 0.95 m.; Caucus files, 1961-1979, 0.9 m; and Caucus Reference and Public Information files, 1966-1971, 1. m.