In this letter, Congressman Leonidas C. Dyer (R-Missouri) invites the NAACP to support a new federal anti-lynching bill. Dyer, who served a largely black constituency in St. Louis, had tried to advance a bill in Congress since 1911. He was reinvigorated by the testimonies of the many survivors of the 1917 East St. Louis riot who relocated to his district. Dyer also asks NAACP Secretary John Shillady for recent data on lynchings that he might include in a speech. His request led to the publication of Thirty Years of Lynching, 1889–1918 a year later.