This experience with working women shaped both Parker personally and the society in which she established herself. As she reached adulthood, there was greater recognition that some women needed education and training to be part of the workforce. At the time, the design field was seen as suitable for women, writes Lester, and “[t]he popular assumption was that if women could learn to properly hone their inherent artistic sensibilities, they could then shape a national aesthetic, both within and beyond the home.”
Parker attended the Franklin Institute Drawing School in Philadelphia, graduating from a two-year program in the spring of 1886. While she was certainly a minority as a woman at the school, her enrollment wasn’t unprecedented. In analyzing the history of the Franklin Institute, architectural historian Jeffrey A. Cohen notes that women “had been part of the audience at the institute’s lectures from its early years, and a smattering of female names appeared in the annual rosters of the drawing school from the mid-1870s on.”
After graduation, Parker likely worked in the architectural office of Edwin Thorne, according to Lester, establishing her own office in either late 1888 or early 1889. She developed a career specialization in residential architecture: of the more than sixty projects she designed, more than half of them were homes. She became known for designing to suit her clients’ tastes and lifestyles, something that appealed to the women who hired her.
Parker’s work for women’s clubs increased her standing as an architect and exposed her to new potential clients. The New Century Club of Philadelphia hired her to design their new club building in 1889. It was an early commission in Parker’s career, and supporting the career of a woman architect aligned with the club’s overall mission.
The biggest commission of Parker’s career unfortunately was never built. Another women’s club, the Queen Isabella Association, asked Minerva to design a pavilion for the 1893 World’s Columbian Exposition being held in Chicago. The proposed pavilion featured “Moorish motifs” to reflect Queen Isabella’s native Spain (a design that perhaps feels ironic today, given that Queen Isabella’s reign marked the end of the Reconquista and the beginning of the Spanish Inquisition). However, the Queen Isabella Association had disputes with the Exposition’s Board of Lady Managers, who used their power to convince those in-charge to prohibit private club buildings.