OH has a landowner exemption for state hunting licenses
http://www.ohiodnr.com/wildlife/dow/regulations/exemptions.aspx
• Landowners, spouses and their children - Are not required to have a hunting license, fur taker permit, deer permit, antlerless deer permit, spring or fall turkey permit or Ohio Wetland Habitat Stamp when they are hunting or trapping on land they own.
• Tenants and their children on land on which they reside and from which they derive the majority (more than 50%) of their income from agricultural production on that land - Are not required to have a hunting license, fur taker permit, deer permit, antlerless deer permit, spring or fall turkey permit or Ohio Wetland Habitat Stamp when they are Hunting or trapping on land where they reside.
• Landowners’ grandchildren who are under 18 years of age - Are not required to have a hunting license or an Ohio Wetland Habitat Stamp while hunting on their grandparent’s land. All other licenses and permits are required.