University of Arizona

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Papers of Andrew Ellicott Douglass

Andrew Ellicott Douglass at his desk in his lab office

American astronomer and educator, founder of the science of dendrochronology. Associated with the Harvard College Observatory, 1889-1894, and its expedition to Peru; as well as the Lowell Observatories in Flagstaff, Arizona, 1894-1901, and Mexico, 1896-1897. At the University of Arizona, Tucson, 1906-1962; Douglass served as professor, dean, acting president, and first director of the Laboratory of Tree-Ring Research, and also the Steward Observatory.

Chiefly materials related to A.E. Douglass' astronomical and tree-ring research, and administration, at the Harvard College Observatory, Lowell Observatories, Steward Observatory, Laboratory of Tree-Ring Research, and University of Arizona. Includes correspondence, photographs, and an unpublished biography.