Overview: Harlow Shapley (1885-1972) was an astronomer who served as Director of the Harvard College Observatory from 1921 to 1952. The records document Shapley’s tenure as director and primarily consist of his incoming and outgoing correspondence files. The letters, including three volumes of outgoing correspondence, relate to Observatory operations, research, and activities, particularly its cooperation with other astronomers and observatories from throughout the United States and abroad. Also...