Put-in-Bay, Lake Erie, Gibraltar Island, Ohio. County/parish: Ottawa.
Added to the National Register of Historic Places November 13, 1966. NRIS 66000620.
1 contributing building.
The Jay Cooke House (also known as Cooke Castle), is a historic summer estate house on Gibraltar Island, an island in the Lake Erie community of Put-in-Bay, Ohio. Built in 1865, it was the summer house and a favorite place of financier Jay Cooke (1821–1905). Since 1925, the former Cooke estate has hosted the Stone Laboratory of Ohio State University, one of the nation's oldest freshwater field research stations. The estate, encompassing the entire 8-acre (3.2 ha) island, was declared a National Historic Landmark in 1966.
(read more...)National Park Service documentation: https://catalog.archives.gov/id/71986538