Ohio Academy of History
- Professional society bringing together teachers, scholars, public historians, and students interested in history.
- http://www2.uakron.edu/oah/

Lake Erie Islands Historical Society
- Founded to preserve historic treasures from economic development.
- http://www.leihs.org/

Ohio Society Sons of the American Revolution
- Aims to perpetuate the memory of those who, by their services or sacrifices during the war of the American Revolution, achieved the independence of the American People.
- http://www.sar.org/ohssar/ohssar.html

Ohio Historical Society
- Promoting knowledge of archaeology and history in Ohio.
- http://www.ohiohistory.org/

Ohio Society War of 1812
- The Society of the War of 1812 in the State of Ohio.
- http://www.udata.com/users/hsbaker/ohio1812.htm