Overview: Elso Sterrenberg Barghoorn (1915-1984), paleobotanist, taught at Harvard University from 1946 until his death in 1984. His papers document his personal and professional activities, including correspondence; accounting records from his field work expeditions; papers relating to research grants and scientific investigations; manuscripts; Harvard University teaching files; and papers from conferences and symposia. His personal materials contain notebooks from his student years; diplomas and...