Among her other achievements, Hazelton was the first woman to win an award open to both men and women in the United States when she won the Hallgarten Prize from the National Academy of Design in 1896.

Her portrait paintings are in the collections of the Massachusetts State House, Harvard University, Peabody Essex Museum, and Wellesley Historical Society.

[3][4] A Harvard College graduate, Dr. Hazelton served for the United States Navy during the Civil War as an assistant surgeon.

[13] Hazelton was one of the women that collector Everette James identified as having "demonstrate[d] remarkable individual artistic skill" who attended the School of the Museum of Fine Arts, Boston in the late 19th century.

[14] Greater public exposure has helped to highlight the individual and unique qualities of some of the women portrait painters "that would rival a Tarbell, Benson or De Camp," according to James in Antiques Journal.

[17] Women did not win non-gender specific awards until 1896 when Hazelton won the National Academy of Design's First Hallgarten Prize[19][11] for her oil painting In a Studio.

[24] During World War I, Hazelton designed a Liberty Loan campaign poster,[11] using her painting Victory's Record.

[25] She exhibited The Letter and Reverie at the Panama–Pacific International Exposition in San Francisco, California, in 1915,[22][20] where she won a bronze medal.

[1] John Singer Sargent considered her "one of the foremost portrait painters of her time", according to Wellesley author Jennifer A.

[22] Scrapbooks, correspondence, sketchbooks, diaries, photographs, and other materials are also held by the Wellesley Historical Society.