This is a very comprehensive guide to the genealogical records and sources in Ohio, written by one of Ohio's foremost genealogists, Carol Willsey Bell. For each of Ohio's eighty-eight counties, Mrs. Bell supplies the following data: the county creation date and the name(s) of the parent county; the county seat; the name and address of the county courthouse, library, historical society, genealogical society, archival district, and health department; a list of relevant land surveys (for land and deed research); the surrounding counties; and the names of all townships in the county. Next is a detailed breakdown of the court records on microfilm (LDS and Ohio Historical Society), listed first by originating office and then by record group.