The St. Louis and O'Fallon mines (unofficially the Nigger Hollow mines) were two coal mines located in St. Clair County, Illinois operated by the St. Louis & O'Fallon Coal Co.[1] Workers at the Nigger Hollow Mines helped start the United Mine Workers Strike in 1919.[2]
- ^ Hinton, Wayne. "St. Clair County, Illinois Coal Mine Fatalities". Wayne's World of History and Genealogy. Retrieved November 9, 2012.
- ^ Jeremy Brecher (1997). Strike!: Revised and Updated Edition. South End Press. pp. 146–152. ISBN 978-0-89608-569-5. Retrieved November 9, 2012.