Mary Josephine Quinn was born in
Indianapolis,
Indiana, on November 24, 1877. She was the eldest of Thomas F. and Anne E. (Gleason) Quinn's eight children (six daughters and two sons). Thomas Quinn, came to Indianapolis in 1857 and by 1877 was farming land outside the city. Interested in art from an early age, Mary Quinn attended public schools in Indianapolis, including the
Shortridge High School. Quinn took classes from Roda Selleck, the head of the high school's art department, and served as Selleck's assistant. In 1899, Quinn received a scholarship to study art at the
Pratt Institute in
Brooklyn, New York, and moved to
New York City to pursue a career as an artist. While living in New York, she met
Katherine Dreier, a fellow art student and the two became a lifelong friends through a shared interest in modern art. Quinn resided in the Brooklyn Heights home of Katherine Dreier's father, Theodor Dreier, during the early 20th century. In 1901, Quinn was hired as an art teacher in the
Queens, New York school system. In 1902, the New York Board of Education sent her to
Europe to observe the curriculum of art schools. Katherine Drier accompanied Quinn during the trip, which included visits to
France and
Italy. Their travels exposed the two women to the modern art movements of the time (
Impressionism and
Post-Impressionism). Dreier went on to establish the
Société Anonyme in 1920, a group of art patrons that promoted modern art. Its collection, which was presented to
Yale University in 1941, became "the core collection of the
Yale University Art Gallery." Mary Quinn Sullivan is listed as a member of the Société Anonyme in Dreier's archives. Quinn taught art at the
DeWitt Clinton High School in
New York City for several years, becoming head of the school's art department by 1909. However, she resigned from teaching and returned to Europe to study at the
Slade School of Fine Art in
London,
England, during the fall term of 1909. Quinn also attended lectures from critic and artist
Roger Fry. Upon her return to New York in 1910, Quinn accepted a faculty position at Pratt Institute as an instructor of drawing and design at its School of Household Sciences and Arts. She later became supervisor of design. In addition, Quinn served as secretary of the New York High School Teacher's Association. She also authored a textbook,
Planning and Furnishing the Home: Practical and Economical Suggestions for the Homemaker (1914). Quinn resigned from the Pratt Institute and left the teaching profession in October 1917. ==Marriage==