Trumbull County Farm and Business Directory, 1951-1953

Warren, (includes Niles & Girard) directories: 1921

Warren, (includes Niles & Newton Falls. From 1978 to 1984 these also include Cortland) directories: 1955, 1961, 1963, 1967, 1969, 1971, 1973, 1978, 1980, 1982, 1984

Youngstown, OH (most cover only the City of Youngstown. Certain volumes also include Struthers, Girard, Campbell, McDonald, Poland, Canfield and Lowellville) directories: 1869, 1872, 1875/1876, 1877 - Present