[2] The early birth control clinics run by IBCL often had staff members on hand who were fluent in several languages, in order to better serve immigrant communities.
[4] In 1916, Margaret Sanger visited Chicago to give a speech against Comstock laws and in support of birth control clinics.
[7] The IBCL and other women continued to fight against laws preventing the dissemination of information about birth control in Illinois during the late 1920s.
[11] In 1934, the IBCL, along with the Chicago Woman's Club, the Birth Control League and the Social Hygiene League of Chicago created a resolution, backed by three hundred women, to allow social workers to discuss family planning and to refer clients to birth control clinics.
[12][13] IBCL incorporated in April 1924 with the name, "Illinois Birth Control League" with the mission of philanthropic and educational work relating to family planning.