Luther P. Eisenhart (1876--1965) was a professor and leading mathematician who served as President of the American Mathematical Society from 1931 to 1932 and as Dean of Princeton University Graduate School from 1933 to 1945. A member of the American Philosophical Society and the National Academy of Sciences, his career and intellectual contributions spanned decades and disciplines. His publications include An Introduction to Differential Geometry with Use of Tensor Calculus (1950) and Historic Philadelphia: From the Founding Until the Early 19th Century, Papers Dealing with Its People and Buildings with an Illustrative Map (1953).