ILGWU


 * The International Ladies' Garment Workers' Union** was once one of the largest [|labor unions] in the [|United States], one of the first U.S. unions to have a primarily female membership, and a key player in the labor history of the 1920s and 1930s.

http://en.wikipedia.org/wiki/ILGWU

Influential union established in New York City in 1900 to organize workers in sewing shops