Ph.D. Johns Hopkins University, Baltimore, Maryland, 1900
Eisenhart published a wealth of research in the field of differential geometry and its physical applications. He developed a remarkable body of original work and served his colleagues by publishing surveys of fields in which he had become a specialist. He was the first American to publish a general work in the field of differential geometry, for instance.
Eisenhart spent most of his career at Princeton University (1900 until his retirement in 1945); he became professor in 1909, served as dean of the faculty from 1923 to 1933, and was appointed dean of the graduate school in 1933. Over the years Eisenhart had a varied association with the AMS, serving as Vice President, editor of Transactions of the American Mathematical Society, Colloquium Lecturer, and President. Eisenhart was a member of the U.S. National Academy of Sciences.