# Leonidas Dyer **Leonidas Carstarphen Dyer** (1871–1957) was a Republican U.S. Representative from St. Louis, Missouri, serving eleven terms (1911–1933, with a brief 1914–15 interruption when a dispute over the 1912 election results unseated him; he won the seat back that November). A Spanish–American War veteran who rose from private to colonel, then a St. Louis attorney who first made his name with an anti-usury campaign, Dyer is best remembered as the sponsor of the [[Dyer Anti-Lynching Bill]] — the first anti-lynching bill ever to pass a chamber of Congress. ## The Anti-Lynching Campaign Dyer represented a majority-Black district, and the 1917 East St. Louis massacre — white mobs killing Black workers directly across the river from his constituency — radicalized him on racial terror. He introduced his anti-lynching bill in April 1918 and pushed it for six years: - **1918:** Introduced (H.R. 11279, 65th Congress); stalled - **January 26, 1922:** Passed the House 230–119, with [[NAACP]] documentation supplying the evidentiary record and [[Warren G. Harding]]'s public endorsement - **1922, 1923, 1924:** Filibustered to death in the Senate by the Southern Democratic bloc three times; Dyer permanently shelved it after 1924 He continued advocating for federal civil rights enforcement for the rest of his career, working closely with the NAACP — one of the era's few white members of Congress for whom anti-lynching was a defining cause rather than a gesture. ## The Other Dyer Act Dyer's name survives in federal law through a different bill: the **National Motor Vehicle Theft Act of 1919** ("the Dyer Act"), which made transporting stolen automobiles across state lines a federal crime. It became one of the young FBI's principal jurisdictional hooks — an ironic legacy, since the interstate-commerce federalization logic of the car-theft bill was exactly the federal-jurisdiction principle Southern senators refused to accept when the subject was murdered Black citizens instead of stolen cars. ## Later Career Dyer was defeated for re-election in the 1932 Democratic landslide (and again in 1934 and 1936 comeback attempts), then retired from politics to practice law in St. Louis until his death in 1957 — five years after the last serious anti-lynching bill of his lifetime died in the Senate, and 65 years before the [[Emmett Till Antilynching Act]] finally enacted what he had started. ## Why He Matters for the KB Dyer is the legislative protagonist of the first great anti-lynching campaign and a key data point against partisan-realignment amnesia: in the 1920s the civil-rights coalition ran through Midwestern Republicans like Dyer allied with the [[NAACP]], against a solidly Democratic white-supremacist South. His bill's architecture — federal prosecution where states refuse, liability for complicit officials, mob-conspiracy culpability — set the template the [[Dyer Anti-Lynching Bill]] page documents and the 2022 Act completed. The car-theft/lynching contrast in his own legislative record remains one of the sharpest single illustrations of what [[Jim Crow Era]] "states' rights" objections actually protected.