Mary Harris Thompson, MD (April 15, 1829 – May 21, 1895), stands as a towering figure in the history of American medicine. As one of the first women to practice medicine in Chicago and a trailblazing surgeon, she founded the Chicago Hospital for Women and Children in 1865, which was later renamed the Mary Thompson Hospital in her honor. Her work not only provided essential healthcare to women and children—particularly the families of Civil War veterans—but also created educational pathways for women in medicine and nursing at a time when the profession was overwhelmingly male-dominated. Thompson's legacy endures through her innovations in surgery, her leadership in medical education, and her resilience in the face of systemic barriers.
Born in Fort Ann, New York, in Washington County, Thompson was the daughter of John Harris Thompson, an iron mine owner, and Calista Corbin Thompson. She grew up in a large family and received a solid early education, attending local schools before moving to the Fort Edward Collegiate Institute in New York for college preparatory studies. She continued at Troy Conference Academy (also known as West Poultney Academy), a Methodist school in Vermont. There, she was encouraged to pursue further studies in physiology, anatomy, and hygiene with the goal of returning as an instructor.
At age 31 in 1860, Thompson enrolled at the New England Female Medical College in Boston, the first medical school dedicated exclusively to women in the United States. Her training included a one-year internship at the New York Infirmary for Women and Children, founded by the pioneering sisters Elizabeth and Emily Blackwell. Elizabeth Blackwell, the first woman to graduate from an American medical school, served as a mentor. Thompson earned her MD in 1863. Later, in 1890, she received an ad eundem degree from Chicago Medical College (now part of Northwestern University), affirming her credentials in a more established institution.
Upon graduation, Thompson relocated to Chicago, a rapidly growing city founded just decades earlier. With few female physicians competing there, she saw opportunity amid need. She initially joined the Northwestern Sanitary Commission’s Chicago branch, working under Dr. William G. Dyas and Miranda Dyas to care for the wives, widows, and children of Union soldiers during the Civil War. Her efforts were constrained, however: Chicago’s existing hospitals barred women from staff positions, and one refused female patients entirely.
Undeterred, Thompson collaborated with Rev. William R. Ryder to establish her own facility. In May 1865, the Chicago Hospital for Women and Children opened at the corner of Rush and Indiana Streets with just 14 beds and a dispensary. Thompson served as head physician, surgeon, and chief of staff for the rest of her life. The hospital focused on indigent women and children, offering care unavailable elsewhere and clinical training opportunities for women doctors. Wealthy Chicago women handled fundraising and administration, while male consulting physicians lent credibility amid widespread prejudice against female practitioners.
Thompson quickly gained recognition as Chicago’s leading female surgeon and, by some accounts, one of the first women in the U.S. to perform major surgery. She specialized in abdominal and pelvic procedures and invented instruments, including an abdominal needle, that gained wider adoption. Her private practice complemented her hospital work, and she treated a high volume of patients even as the facility expanded. By 1869, growth necessitated a move to larger quarters with 16 beds.
The hospital’s educational mission was central to Thompson’s vision. In 1870, with Dr. William H. Byford, she co-founded the Woman’s Hospital Medical College, the first such institution in the Midwest. Thompson served on the faculty, teaching gynecology, obstetrics, and hygiene. The college provided preclinical and clinical training, with students gaining hands-on experience at the affiliated hospital. Graduates, often excluded from male-dominated institutions, filled roles as interns, residents, and attendings there. The first class included Julia Cole, who had faced expulsion from Chicago Medical College due to gender biases.
The Great Chicago Fire of 1871 tested Thompson’s resolve. The blaze destroyed the hospital and college buildings, displacing patients and faculty. Thompson and her staff relocated patients to private homes on Adams Street, treating burn victims of both genders amid the chaos. With $25,000 from the Relief Aid Society, the hospital reopened in 1873 at a new site on Adams and Paulina Streets. The college also resumed operations temporarily in a nearby residence.
In 1874, Thompson established Chicago’s first nursing school within the hospital. This program trained women in patient care, wound management, medication administration, and even anesthesiology—skills that made its graduates highly sought after nationwide. The two-year curriculum combined lectures with ward experience, setting high standards for professional nursing in the Midwest.
Thompson navigated ongoing challenges. Male students and faculty at mixed institutions often resisted women’s presence, citing discomfort with “indelicate” topics. After women were briefly admitted to Chicago Medical College in 1869–1870, complaints led to their dismissal. Thompson’s affiliated college faced resource shortages, faculty inconsistencies, and student dissatisfaction over facilities. By 1879, it separated from the hospital and reorganized as the Woman’s Medical College of Chicago. In 1892, it affiliated with Northwestern University as the Northwestern University Woman’s Medical School, where Thompson served as professor of gynecology until her death. Despite initial hopes for stability, the school closed in 1902 as coeducation advanced elsewhere, reflecting persistent societal ambivalence.
Her professional achievements extended beyond institutions. Admitted to the Chicago Medical Society in 1873, she became its vice president in 1881—the first woman in that role—and later joined the American Medical Association. She presented papers, including as the first woman to address the AMA’s Section on Diseases of Children, and chaired that section. Her publications on women’s health and pediatric conditions advanced medical knowledge.
Thompson never married, dedicating her life fully to medicine and advocacy. She faced ridicule and discrimination common to early women physicians, yet her skill and dedication won respect. By the 1880s, she had influenced perceptions of women’s capabilities in surgery and leadership.
On May 21, 1895, Thompson died suddenly at age 66 from a cerebral hemorrhage. In June 1895, the hospital was renamed the Mary Thompson Hospital for Women and Children. A marble bust by Daniel Chester French (commissioned posthumously) was donated to the Art Institute of Chicago in 1903. She was buried in Fort Ann Cemetery, New York, alongside siblings. The hospital continued operations, remaining women-staffed until 1972 and closing in 1988 due to financial pressures.
Mary Harris Thompson’s impact transcended her era. She provided care to thousands, trained generations of women physicians and nurses, and helped normalize female participation in medicine. In a time when women were often deemed intellectually or morally unfit for the profession, she proved otherwise through competence and perseverance. Her hospital and schools addressed immediate needs while building long-term infrastructure for gender equity in healthcare. Today, as debates on diversity in medicine continue, Thompson’s story reminds us of the pioneers who dismantled barriers one patient, one student, and one procedure at a time.
Her contributions—founding the Midwest’s first women’s medical college, Chicago’s first nursing school, and serving as a pioneering surgeon—cement her place among American medical trailblazers. Thompson’s life exemplifies how determination, mentorship (from figures like the Blackwells), and community support can drive systemic change. Though the physical institutions she built have evolved or closed, her influence on women’s health and professional opportunities persists in every female doctor and nurse practicing today.