Quadrennial Enumerations consist of a census of males over twenty-one years of age residing in a county.
They show address, race, occupation, and whether a freeholder of land.
Enumerations were used to determine voting districts, and were taken every four years from 1803 to 1911.
Prior to 1863 enumerations recorded only white males.
Where a span of dates is indicated, the records exist for every fourth year.
Not all townships are represented for every county listed.
Enumerations held by Special Collections and Archives:
- Auglaize County, 1851-1907
- Darke County, 1887
- Mercer County, 1837-1907
- Miami County, 1827, 1835
- Shelby County, 1819-1875