Butler County Pennsylvania. Butler, PA : Butler County Sesqui-Centennial Association, c1950.
Butler County Sketches by Virginia and W.Thomas Lytle. Butler, PA: The Eagle Printery, 1976.
Centennial souvenir of Butler and Butler County, June 12-13-14 1900. Butler, PA: Godwin & Curry, 1900 (1999 reprint)
History of Butler County Pennsylvania / Sipe, Hale C. Topeka : Historical Publ. Co., 1927
Butler's past comes alive / Ralph Goldinger. New Wilmington : New Horizons Pub. Co., 1999
Lost Butler: postcards from a vanished time and place / James Clements. New Wilmington: New Horizons Pub. Co., 1999.
Butler County, Pennsylvania celebrates its bicentennial / written by the staff of The Butler Eagle. Pittsburgh : The Local History Co., 2001.
Butler / by Stephen M. Pozar and Jane B. Purvis. Virginia Beach : Donning Co., 1994.
Butler County, the second hundred years / Ralph Goldinger and Audrey Fetters.
