Charles Sisam (1878-1964) earned his Ph.D. under V. Snyder in 1905. He was an invited speaketr at the International Congres of Mathematician in 1924 (Toronto) and 1928 (Bologna). He taught at Colorado College.
Francis R. Sharpe (1870-1948) was second Wrangler in Cambridge (Christ College) in 1892. He earned his Ph.D. at Cornell in 1907 under James McMahon and became a close collaborator of V. Snyder.
David C. Gillespie (1877-1935), a student of David Hilbert, joined the department in 1906. He died will serving as Chair in 1935.
Wallie Hurwitz (1886-1958), another student of David Hilbert, joined the department in 1910. He served twice as Chair of the Department.
Helen Brewster (later, Owens, 1881-1969) was a star student at the University of Kansas, She moved to Ithaca with her husband Frederick Owens when he became Instructor at Cornell. She gave birth to two daughter (1905,1908) and earned her Ph.D. under V. Snyder in 1910. She was an Instructor at Cornell 1917-1922. She was also a very active suffragist in both Kansas and New York.
Julia Dale (1893-1936) earned her Ph.D. in 1924 under W. Hurwitz. She later became Assiatant Professor at Duke Universoity where an undergraduate math prize is named after her.
Helbert F. Cox (1895-1969) earned his Ph.D. in 1925, the first African American to do so. His advisor was W.L.G. Williams. He became Professor at Howard University.
Louis Lazarus Silverman (1884-1967) was born in Lithuania. He studied at Harvard before earning the first Mathematics Ph.D. granter by the University of Missouri where Wallie Hurwitz had studied before going to Harvard and Göttingen. They became close friend and colleague at Cornell (both were dedicated amateur musicians). Silverman joined Dartmouth College in 1917. His son, Raphael Hillyer Silverman, born in Ithaca April 10, 1914, became a member of the Boston Symphony Orchestra and the founding violist of the Juilliard String Quartet. Hurwitz and Silverman collaborated on summation methods and both made important contributions to the subject. Silverman was an invited speaker at 1928 International Congres of Mathematicians in Bologna.
Harold Calvin Moore (1892-1977) his one of the most celebrated mathematician of the twentieth century, receiving the National Medal of Science in 1964. After earning his Ph.D. in 1917 at Harvard under D. Birkhoff and serving in World War I (he was awarded the French “Croix de Guerre with silver star” for bravery under fire), he spent five years at Cornell, 1920-1925. During that he worked on and published the first paper on what is know known as Morse Theory, a paper titled Relations Between the Critical Points of a Real Function of n Independent Variables .