The Voluntary Parenthood League (VPL) was an organization that advocated for contraception during the birth control movement in the United States. The VPL was founded in 1919 by Mary Dennett.[1] The VPL was a rival organization to Margaret Sanger's American Birth Control League. The VPL lobbied to change anti-contraception laws.[2] In 1925 the VPL merged with the American Birth Control League.