Description: ATO National Officers Conference Subject Files (1936-71, 1989) including correspondence, minutes, reports, programs, and scripts. National Officers' Conferences were held in 1931, biennially 1936-42, annually 1942-45, and biennially 1945-71. After 1971 National Officers' Conferences were combined with the National Congresses, except in 1989 when an independent NOC was held. In 1965 the NOC was held during the Chapter Officers' Leadership Conference, and material concerning it has been placed in that record series.