Allen County Directory
1920-21, 1938-40, 1948-50, 1958, 1963, 1965
Ashland County Directory
1915-20, 1919, 1953, 1956, 1959, 1961, 1964, 1967, 1970, 1972, 1974, 1976, 1977, 1978, 1980, 1982, 1984, 1986, 1988, 1990, 1992, 1994, 1996, 1998
Belmont County Directory
1853, 1897, 1917, 1996
Champaign County Directory
1954
Clermont County Directory
1932-34
Columbiana County Directory
1874-75, 1915, 1948-49-50
Coshocton County Directory
1899, 1954, 1988
County Directories
A List of the County Directories in the OGS Library Collection
Crawford County Directory
1896, 1900, 1920-23, 1929-30, 1939, 1958, 1961, 1963, 1965, 1969, 1972, 1974, 1976, 1978, 1980, 1982, 1984, 1986, 1988, 1990-91, 1992-93, 1997
Cuyahoga County Directory
1970, 1978, 1983-84, 1986-87, 1991, 1992, 1993, 1994, 1997 (East)
Darke County Directory
1910, 1916-21, 1955, 1967
Defiance County Directory
1971, 1973
Delaware County Directory
1915-20, 1928-32, 1964, 1969, 1971, 1975, 1977, 1980, 1987, 1990
Erie County Directory
1905, 1930-32, 1956, 1961, 1967, 1970, 1973, 1976
Fairfield County Directory
1952, 1964, 1974
Fayette County Directory
1958, 1967
Fulton County Directory
1973, 1975
Greene County Directory
1960
Hancock County Directory
1964, 1967, 1969, 1972, 1974, 1976, 1978, 1980, 1982, 1984, 1986, 1989, 1990-91, 1992-93, 1995, 1997
Hardin County Directory
1927-31, 1966, 1971, 1984-85, 1986-87, 1989
Hardin County Directory, 1927-1931
Henry County Directory
1973, 1975, 1977, 1979, 1981
Holmes County Directory
1976, 1979, 1986-87, 1990
Huron County Directory
1905 (with Erie), 1908, 1918-23, 1931-33, 1938-1940, 1949-51, 1957, 1960, 1963, 1964, 1965, 1969, 1972, 1974, 1976, 1978, 1980, 1982, 1984, 1986, 1988, 1990, 1992, 1994, 1996-97, 1998, 1999
Huron County Directory, 1931-1933
Southwestern Ohio Publishing Company, 1931
Huron County Directory, 1938-1940
Robinson Directories, Inc., 1938
Knox County Directory
1915-20, 1924-27, 1939-40, 1958, 1971, 1973, 1976, 1978, 1981, 1984, 1986, 1988, 1990, 1992, 1996
Knox County Directory, 1924-1927
J. J. Clery, 1924