She studied math and astronomy at Columbia which at the time was an all-male institution. Her teachers included Professor John Krom Rees, Professor J. Howard Van Amringe and Professor William Guy Peck.
The passage describes a woman who studied mathematics and astronomy at a historically male-dominated institution, Columbia University, and highlights her instructors: Professor John Krom Rees, Professor J. Howard Van Amringe, and Professor William Guy Peck.