Tag: haymarket_riot

Allan Pinkerton: From Abolitionist to Detective Agency Founder

25 Aug 2025 8:03 a.m. · Source: U.S. Library of Congress

Learn about Allan Pinkerton, the founder of Pinkerton’s National Detective Agency, his role in uncovering an assassination plot against Abraham Lincoln, and his agency's involvement in labor disputes.

Politics and Government Business History Social Issues Law Enforcement Employment and Labor Allan Pinkerton Pinkerton's National Detective Agency Underground Railroad Abraham Lincoln Civil War Haymarket Riot Homestead Strike U.S. Library of Congress