Betsy Talbot Blackwell (1905 – February 4, 1985) was an editor of several women's magazines, best known for being the editor-in-chief of Mademoiselle from 1937 to 1971.[1] Under her leadership, sales surged to nearly one million by the time she retired.[2] In 1970, amidst the burgeoning women's liberation movement, Blackwell published an issue titled "The New Sex," paying tribute to the rise of the individualistic American woman, and she was one of the first editors to publish Gloria Steinem.[3]