Ohio County records vary widely from county to county in both quality and quantity. Some have been carefully preserved while others have been much abused and neglected. Some Ohio records have simply disappeared.
For genealogists doing research in Ohio there is no effective replace for an on-site search of county courthouse records.
The damage to courthouses greatly has a bearing on genealogists in every way.
Not only are these historic structures torn from our lifetimes, so are the records they housed: marriage, wills, probate, land records, and others.
Once destroyed they’re lost forever. Although they have been placed on mircofilm, computers and film burn too.
However, not all records were damaged or lost in some counties.
Adams County Courthouse caught fire in 1910, resulting in the loss of most of the will books and other probate files, as well as some other records.
Belmont County Courthouse, 1980;
Brown County Courthouse, 1977;
Champaign County Courthouse, 1948;
Columbiana County Courthouse, 1976;
Crawford County Courthouse, 1831;
Delaware County Courthouse, 1835;
Fayette County Courthouse, 1828;
Franklin County Courthouse, 1879;
Fulton County Courthouse, before 1860;
Gallia County Courthouse, 1981;
Hamilton County Courthouse, 1814, 1849, 1884;
Henry County Courthouse, 1847;
Licking County Courthouse, Destroyed by fire on 2 April 1875. Records in the Recorder’s, Sheriff’s, Auditors and Treasurer’s offices were saved. The marriage records between 1829-1839 were possibly lost completely in the fire. Some estate records also were burned in the fire. There are gaps in records for this county. Also on 29 Mar 1879 the tower of the New Licking County Courthouse caught fire. No records were destroyed.
Monroe County Courthouse, 1840, 1867;
Seneca County Courthouse, 1841;
Trumbull County Courthouse, 1895.
Researchers should note that some records may have survived in each case. So, it is important to contact the county courthouses first and see which records are still available. Courthouse record keepers may also be able to point researchers to other resources.