This is a collection of over 528,000 records. The original official records are owned by the City of Cincinnati and housed in the Archives and Rare Books Library, University of Cincinnati Libraries, University of Cincinnati. The records, consisting of index cards, were created by the Cincinnati Health Department several decades ago and are considered the official and legal records of births and deaths for this time period.
A major problem with researching ancestors in Hamilton County is the loss of vital records in three court house fires between 1814 and 1884. Therefore, to facilitate identification of those living and passing through Hamilton County before 1884, the Hamilton County Genealogical Society has published many volumes of records and indexes to original sources. The number of names in the published volumes is now in the hundreds of thousands. To assist researchers, the society has merged the names in one record type index available here. Each entry has a code referring to the book that contains information about that person. At this time names in newspaper death notices and marriage records are available.