In response to "call to dig" on Mary Lasker I have unearthed some information that I had researched a while ago.
https://sanger.hosting.nyu.edu/articles/bc_or_race_control/
Birth Control or Race Control? Sanger and the Negro Project
The story appears to be more about Margaret Sanger. However, her close relationship with Mary Lasker is evident. Mary Lasker's likely eugenicist background is obvious, imo.
Quote: "In 1939 Sanger teamed with Mary Woodward Reinhardt, secretary of the newly formed BCFA, to secure a large donor to fund an educational campaign to teach African-American women in the South about contraception. " (Mary Woodward Reinhardt was Mary Lasker's name before she married the advertising executive Albert Lasker.)