The constitution of the Brotherhood of the Footboard was ratified by engineers in Detroit, Mich. Later became the Brotherhood of Locomotive Engineers - 1863
The Knights of St. Crispin union is formed at a secret meeting in Milwaukee. It grew to 50,000 members before being crushed by employers later that year - 1867
National Typographical Union founded, Cincinnati, Ohio. It was renamed the Int?l Typographical Union in 1869, in acknowledgment of Canadian members. When the ITU merged into CWA in 1986 it was the oldest existing union in the U.S. - 1852