She headed the list of plaintiffs in the class action lawsuit against the Boston School Committee. The School Committee, whose director, James Hennigan, was named the main defendant, was accused of intentionally bringing about and maintaining racial segregation in the Boston School District.[5]
The lawsuit was filed on March 14, 1972 by the Boston Chapter of the National Association for the Advancement of Colored People (NAACP). The judge assigned to the case was Judge W. Arthur Garrity, who reached his decision on June 21, 1974.
The plaintiffs claimed that through practices such as "the adoption and maintenance of pupil assignment policies, the establishment and manipulation of attendance areas and district lines reflecting segregated residential patterns, the establishment of grade structures and feeder patterns, the administration of school capacity, enlargement, and construction policies, [and] transportation practices," the Boston School Committee had in effect denied black school children equal protection under the law.[5]
Another accusation was that the School Committee had discriminated in the hiring and assignment of faculty, and the distribution of resources, discriminated in the admission of children to certain schools, and knowingly maintained a pattern of lower instructional expenditure for some children which all violated the Thirteenth and Fourteenth Amendments and resulted in denying black children constitutionally granted equal access to education.[5]
Garrity's enquiry established that the racial segregation of the Boston school system was a fact. He found that the city defendants had in no ways used the tool of redistricting to alleviate racial segregation despite being aware of the possibility. It had, in one case, used redistricting to perpetuate racial segregation in schools.
Similarly, he found that the established feeder patterns, open enrolment, faculty hire and promotion policies all contributed to the perpetuation of racial segregation and the provision of lower quality education in schools attended by predominantly black students.