- [ca. 1972] - [ca. 1995] ; predominantly 1986 - 1995
Fonds consists of Leslie E. Haley's materials regarding his professional activities, researches, and involvement with the Science Council of Canada, the Gambia project, Nova Scotia Department of Education's Biology Task Force, and the Summer Science Institute. Fonds includes reports, correspondence, financial records, booklets, and other textual records.