sentences:  She did her undergraduate studies in mathematics at Russell Sage College, a small women's college in Troy, New York, while also taking classes at the nearby men-only Rensselaer Polytechnic Institute, as at that time Russell Sage had no mathematics department.At Russell Sage, she was a Kellas honor student, and president of the science club.She completed her Ph.D. in 1969 at the University of Rochester; her dissertation, "On Birth and Death Processes", was supervised by Johannes Kemperman.