Places
- Yellowstone National Park1
- Yellowstone National Park (Agency : U.S.)1
- York County (Va.)--History1
- York County (Va.)--History--18th century1
- York County (Va.)--History--19th century1
- York County (Va.)--History--20th century2
- York County (Va.)--History--Revolution, 1775-17831
- York Harbor (Me.)23
- Yorktown (Va.)4
- Yorktown (Va.)--History--19th century3
- Yorktown (Va.)--History--20th century3
- Yorktown (Va.)--History--Civil War, 1861-18651
- Yorktown (Va.)--History--Siege, 1781--Centennial celebrations, etc6
- Yorktown (Va.)--Photographs1