NHD has affiliates around the world. These programs are independently sponsored by organizations that coordinate local and affiliate level contests where students can compete for the chance to advance to the National Contest. NHD’s affiliates also provide programmatic materials and workshops for teachers and students.

Many individuals and organizations contribute to the success of our affiliate level programs.

View affiliate contributors

To access NHD program contact and other information for a specific NHD affiliate, choose an affiliate from the box below.


Ohio History Connection
800 E. 17th Ave.
Columbus OH 43211

Phone: (614) 297-2526
Fax: (614) 297-2567

Ohio Contest
Virtual Contest
Saturday, April 23, 2022
Ohio Directory of Resources:
Historical Societies, Museums and Historic Sites
Anti-Saloon League MuseumBicycle MuseumCincinnati History MuseumCleveland History CenterClinton County Genealogical and Historical SocietiesDelaware County Genealogical SocietyDelaware County Historical SocietyHistoric Lyme VillageHudson Library and Historical SocietyInland Seas Maritime MuseumInternational Women’s Air and Space MuseumJohnston Farm and Indian AgencyLake Erie Islands Historical SocietyLakewood Historical SocietyMcKinley Museum and National MemorialOhio History ConnectionPerry County History and GenealogyPortage County Historical SocietyPro Football Hall Of FameRock and Roll Hall of Fame and MuseumSauder VillageStatewide Ohio Historical SitesSummit County Historical SocietyUnited States Air Force MuseumAdena Mansion & GardensArmstrong Air & Space MuseumBig Bottom Memorial ParkBuckeye FurnaceBuffington Island Battlefield Memorial ParkCampus Martius MuseumCedar Bog Nature PreserveChampaign Aviation MuseumCooke-Dorn HouseCuster MonumentDavis Memorial Nature PreserveDayton Aviation Heritage National Historical ParkDayton History – Carillon Historical ParkFallen Timbers Battlefield Memorial ParkFlint Ridge Ancient Quarries & Nature PreserveFort Amanda Memorial ParkFort Ancient Earthworks & Nature PreserveFort Hill Earthworks & Nature PreserveFort Jefferson Memorial ParkFort LaurensFort MeigsFort Recovery Museum & MonumentGlacial Grooves Geological PreserveHanby HouseHarriet Beecher Stowe HouseHayes Presidential Library & MuseumsIndian MillInscription Rock PetroglyphsJohn & Annie Glenn MuseumJohn Rankin HouseJohnston Farm & Indian AgencyLeo Petroglyphs & Nature PreserveLockington LocksLogan ElmMcCook HouseMiamisburg MoundMuseum of CeramicsNational Afro-American Museum & Cultural CenterNational Aviation Hall of FameNational Museum of the United States Air ForceNational Road & Zane Grey MuseumNewark EarthworksOhio History CenterOhio River MuseumOhio VillageOur House TavernPaul Laurence Dunbar HouseQuaker Yearly Meeting HouseSchoenbrunn VillageSerpent MoundShaker Historical MuseumShrum MoundStory MoundTallmadge ChurchU.S. Grant BirthplaceU.S. Grant Boyhood Home & SchoolhouseWACO Air Museum and WACO Historical SocietyWahkeena Nature PreserveWarren G. Harding Home & MemorialWilliam Henry Harrison TombYoungstown Historical Center of Industry & LaborZoar Village