https://en.wikipedia.org/wiki/Margaret_Sanger

Margaret Higgins Sanger (born Margaret Louise Higgins, September 14, 1879 – September 6, 1966, also known as Margaret Sanger Slee) was an American birth control activist, sex educator, writer, and nurse.

In 1921, Sanger founded the American Birth Control League, which later became the Planned Parenthood Federation of America. In New York City, she organized the first birth control clinic staffed by all-female doctors, as well as a clinic in Harlem with an all African-American advisory council, where African-American staff were later added. In 1929, she formed the National Committee on Federal Legislation for Birth Control, which served as the focal point of her lobbying efforts to legalize contraception in the United States. From 1952 to 1959, Sanger served as president of the International Planned Parenthood Federation. She died in 1966, and is widely regarded as a founder of the modern birth control movement.

Sanger worked with African American leaders and professionals who saw a need for birth control in their communities. In 1929, James H. Hubert, a black social worker and the leader of New York's Urban League, asked Sanger to open a clinic in Harlem. Sanger secured funding from the Julius Rosenwald Fund and opened the clinic, staffed with black doctors, in 1930. The clinic was directed by a 15-member advisory board consisting of black doctors, nurses, clergy, journalists, and social workers. The clinic was publicized in the African-American press as well as in black churches, and it received the approval of W. E. B. Du Bois, the co-founder of the NAACP and the editor of its magazine, The Crisis. Sanger did not tolerate bigotry among her staff, nor would she tolerate any refusal to work within interracial projects. Sanger's work with minorities earned praise from Martin Luther King, Jr., in his 1966 acceptance speech for the Margaret Sanger award.

From 1939 to 1942, Sanger was an honorary delegate of the Birth Control Federation of America, which included a supervisory role—alongside Mary Lasker and Clarence Gamble—in the Negro Project, an effort to deliver birth control to poor black people. Sanger advised Dr. Gamble on the utility of hiring a black physician for the Negro Project. She also advised him on the importance of reaching out to black ministers, writing:

The ministers work is also important and also he should be trained, perhaps by the [Birth Control] Federation [of America] as to our ideals and the goal that we hope to reach. We do not want word to go out that we want to exterminate the Negro population and the minister is the man who can straighten out that idea if it ever occurs to any of their more rebellious members.

New York University's Margaret Sanger Papers Project says that though the letter would have been meant to avoid the mistaken notion that the Negro Project was a racist campaign, detractors of Sanger, such as Angela Davis, have extracted the passage "as evidence she led a calculated effort to reduce the black population."