- Spring Hill Historic Home
- Springside Landscape Restore
- St Anne's Hill
- St Peter's Landmark Prsrvtn
- Staatsburgh State Historic Sit
- Stony Brook Grist Mill
- Stony Creek Historical Assn
- Stuart's Opera House
- Summit County Historical Scty
- Sumpter Valley Railroad
- Tallmadge Historical Society
- Thomas Cole Cedar Grove
- Thomas Cole Cedar Grove
- Three Village Historic Society
- Tippecanoe Historical Society
- Troy-Hayner Cultural Ctr
- U S Grant Homestead Assoc
- Union Depot
- Union Depot
- Union Depot
- Union Depot
- Upton Association
- Van Alen House
- Vanderbilt Mansion
- W C Handy Foundation
- Wading River Historical Soc
- Ward County Historical Society
- Warsaw Historical Soc
- Waterloo History Office
- Watson House
- Whitestone Battlefield
- Wilderstein Preservation
- Will Rogers Birthplace Home
- William Floyd Estates
- William Mc Guffey Holmes Inc
- William Miller Home
- Workshop/Montgomery Place
- Writing Rock State Historic
- Wyandot Mission Church
- Yaphank Historical Society
- Young-Morse Historic Site
- Young-Morse Historic Site
- Zim House
