Clifford is a former unincorporated community in northwestern Williamson County, Illinois. It is a former early 20th century mining settlement that has almost disappeared since the closing of local mines.
A post office was established on 26 January 1905, and it remained in operation until after 1931.
The population in 1958 was listed as 300.James N. Adams, comp. 1989. Illinois Place Names. Springfield, Ill.: Illinois State Historical Society. 324.
References
External links Clifford Maps, Facts & Features: illinois.hometownlocator.com, retrieved 22 Feb 2011.