The American Flint Glass Workers' Union (AFGWU) was a labor union representing workers involved in making glassware and related goods in the United States and Canada.
The union was founded in Pittsburgh on July 1, 1878, by locals which split away from the Knights of Labor.
On July 27, 1887, it was chartered by the American Federation of Labor (AFL).
[2] From 1955, it was affiliated to the new AFL–CIO, growing to 35,000 members by 1957,[4] this figure falling slightly to 33,375 in 1980.
[5] By 2003, membership was down to 12,000, and on July 1, the union merged into the United Steelworkers.