1947: After an international career as an opera singer, on April 21, 1947, Dorothy Maynor incorporates the St. James Community Center, Inc. in the basement of the St. James Presbyterian Church, where her husband was the pastor.
1964: Officially renamed The Harlem School of the Arts. Mrs. Samuel Duskin and Mrs. Artur Rodzinski were elected Co-Chairmen of the Board of Trustees
1966: Arthur Mitchell, the leading dancer with New York City Ballet, joins faculty. School is at full capacity with 300 students enrolled. May 17 – New York State Award presented to the school by Governor Nelson A. Rockefeller for "outstanding dedication and accomplishment in developing the artistic talents of the children of Harlem.” Five children from the school performed at the event, held at Union College in Schenectady. John Philip Sousa III (grandson of the famous “march king”) was elected Chairman of the Board of Trustees. Mrs. Vladimir Horowitz forms Women's Committee with Leontyne Price serving as Honorary Chairman.
1967: The New York Times publishes the article “To Make Beauty in Harlem” on HSA November 5, “What we are counting on is that we can add new dimensions to their lives, the most important of which is beauty.” – Dorothy Maynor
1969: HSA inaugurates its new theater faculty with a production of Aime Cesaire's A Season in the Congo. The new theater was converted from an abandoned garage.
1972: Maynor serves as visiting lecturer for Yale University's Department of Drama (1971–72)
1974: The Harlem School of the Arts Heritage Society One Hundred Voice Choir, with Maynor as conductor, makes its Lincoln Center debut on March 4. The sold-out Gala Benefit Performance at Alice Tully Hall features soloists Betty Lane; Louise Parker, George Shirley, and McHenry Boatwright with a surprise performance by Metropolitan Opera star Martina Arroyo. The Honorable Mayor Abraham D. Beame and Mrs. Beame are honorary chairmen, and Ms. Alice Tully is Chairman of the event.
1975: HSA celebrates its 10th anniversary and breaks ground for the new building. The Heritage Society Chorus also performs at the United Nations in celebration of Human Rights Day, and HSA Founder Maynor becomes the first woman to conduct at the U.N.On March 4, New York City Mayor Abraham Beame issues a proclamation to “Dorothy Maynor In recognition of her outstanding career as a world-renowned soprano and her devotion to the people of New York. Her Harlem School of the Arts has given an entire community entrée to the World of Art.”