sentences:  He attended Harvard University where he received BA and MA degrees in history in 1939 (graduating Magna cum Laude) and 1940 respectively, and worked on a doctorate in history until 1942.While he was at Harvard, his passion for ornithology flourished; he birded with noted ornithologists Ludlow Griscom, William H. (Bill) Drury, Wendell Taber, Allan Cruickshank, Chandler Robbins, Charles Foster Batchelder and others in the Nuttall Ornithological Club.He met his future wife, Elizabeth Wasson (daughter of Isabel Bassett Wasson), who was also a birder, at the Audubon Nature Camp in Medomak, Maine in 1940.