Series one contains conference proceedings and annual reports ranging from the first conference up to 1996. While there are a few gaps, the annual activities of the PSAD are well documented. See series 4 for conference proceedings after 1941, as they are found in the PSAD News issues sometime around the July-August editions. For minutes of the conferences see series 2. For additional annual reports, particularly from 1970-1989, see series 4, as they are found in the PSAD News issues around June of each year.