Formed 12 Feb 1820, 420 square miles
Parent counties: Shelby, Logan, Wood, Williams
Evolution of county from date of formation until it assumed its final form
1 Apr 1820: Erected and attached to Wood
2 Feb 1824: Attached to Williams
26 Dec 1834: Organized
20 Jun 1835: Diminished by formation of Lucas
7 Apr 1845: Diminished by formation of Defiance
1 Apr 1850: Diminished by formation of Fulton
Federal Population schedules extant from 1820-1940. (1890 missing) In 1820, Henry County was part of Wood County. The census for Wood County in 1820 is lost.
1850 Agricultural; 1850 Industry; 1850 Mortality; 1860 Agricultural; 1860 Mortality; 1870 Agricultural; 1870 Industry; 1880 Agricultural; 1880 Defective, Dependent, and Delinquent
Bartlow, Damascus, Flatrock, Freedom, Harrison, Liberty, Marion, Monroe, Napoleon, Pleasant, Richfield, Ridgeville, and Washington.
Archival District: Bowling Green State University, Center for Archival Collections, Jerome Library, Bowling Green Ohio.
Jana Broglin, CG, OGSF