her gender. Women studied at Yale University as early as 1892, in graduate-level programs at the Yale Graduate School of Arts and Sciences. The first seven women to earn PhDs at Yale received their degrees in 1894: Elizabeth Deering Hanscom, Cornelia H. B. Rogers, Sara Bulkley Rogers, Margaretta Palmer, Mary Augusta Scott, Laura Johnson Wylie, and Charlotte Fitch Roberts. There is a portrait of these seven women in Sterling Memorial Library, painted by Brenda Zlamany. In 1966, Yale began discussions with its sister school Vassar College about merging to foster coeducation at the undergraduate level. Vassar, then all-female and part of the Seven Sisters—elite higher education schools that historically served as sister institutions to the Ivy League when most Ivy League institutions still only admitted men—tentatively accepted, but then declined the invitation. Both schools introduced coeducation independently in 1969. Amy Solomon was the first woman to register as a Yale undergraduate; she was also the first woman at Yale to join an undergraduate society, St. Anthony Hall. The undergraduate class of 1973 was the first class to have women starting from freshman year; at the time, all undergraduate women were housed in Vanderbilt Hall at the south end of Old Campus. A decade into co-education, student assault and harassment by faculty became the impetus for the trailblazing lawsuit Alexander v. Yale. In the late 1970s, a group of students and one faculty member sued Yale for its failure to curtail campus sexual harassment by especially male faculty. The case was partly built from a 1977 report authored by plaintiff Ann Olivarius, now a feminist attorney known for fighting sexual harassment, "A report to the Yale Corporation from the Yale Undergraduate Women's Caucus." This case was the first to use Title IX to argue and establish that the sexual harassment of female students can be considered illegal sex discrimination. The plaintiffs in the case were Olivarius, Ronni Alexander (now a professor at Kobe University, Japan), Margery Reifler (works in the Los Angeles film industry), Pamela Price (civil rights attorney in California), and Lisa E. Stone (works at Anti-Defamation League). They were joined by Yale classics professor John “Jack” J. Winkler, who died in 1990. The lawsuit, brought partly by Catharine MacKinnon, alleged rape, fondling, and offers of higher grades for sex by several Yale faculty, including Keith Brion, professor of flute and director of bands, political Science professor Raymond Duvall (now