Mount Hope, most of which is now the grounds of the former Hudson River State Hospital. Isaac chose the name Rosedale for his own property. After his death in 1863, his son John Aspinwall Roosevelt inherited the property. He made several renovations and additions to the house, including the front porch, and is most responsible for its present appearance. His nephew Franklin, the future president, spent much time at Rosedale as a child. The property remained in the Roosevelt family until 1954, when Rosedale was subdivided to create the present suburban neighborhood around it. The house, a cottage and boathouse on the river are the only estate buildings that remain. There have been no major alterations to either. References Federal architecture in New York (state) Houses completed in 1832 Houses in Hyde Park, New York Houses on the National Register of Historic Places in New York (state) Italianate architecture in New York (state) National Register of Historic Places in Dutchess County, New York Isaac