Conditions in the Coal Fields of Pennsylvania, West Virginia, and Ohio. hearings before the United States Senate Committee on Interstate Commerce, Seventieth Congress, first session, on Feb. 10, 23-27, Mar. 7-10, 12-15, 19-23, 26, 1928. Vol. 1 :
Feb. 23 hearings were held in Pittsburgh, Pa., and in mines near Castle Shannon, Pa. and Coversdale, Pa.; Feb. 24, hearing was held near Crafton, Pa.; Feb. 25 hearing was held in Pricedale, Pa.; Feb. 26 hearing was held in Pittsburgh, Pa.; Feb. 27 hearing was held in Rossiter, Pa.