Piermont, New York; its jurisdiction was extended to Stony Point, New York, in 1906. The Commission was expected to raise the funds needed for the acquisition of land from private sources. Needing at least $125,000, Perkins turned first to J. P. Morgan, who offered to put up the entire sum on the condition that Perkins would become a Morgan partner. Perkins agreed, with the immediate result that quarrying along the Palisades was stopped on December 24, 1900. Then, in 1908, the State of New York announced plans to relocate Sing Sing Prison to Bear Mountain. Work was begun and in January 1909, the state purchased the 740 acre (3.0 km²) Bear Mountain tract. Conservationists, inspired by the earlier work of the Park Commission, lobbied successfully for the creation of the Highlands of the Hudson Forest Preserve. However, the prison project was continued. Working with Union Pacific Railroad president Edward Henry Harriman and (after Harriman's death) with his widow, Mary Averell Harriman, Perkins, arranged a gift to the state of ten thousand acres (40 km²) and one million dollars from the Harrimans toward the creation of a state park. Another $1.5 million was raised from a dozen wealthy contributors including John D. Rockefeller and Morgan. New York state appropriated a matching $2.5 million. Bear Mountain-Harriman State Park became a reality in 1910 when the prison was demolished. Perkins hired Major William A. Welch as Chief Engineer, whose work for the park would achieve national influence as state and national park systems grew. The Perkins Memorial Tower at Bear Mountain State Park commemorates his work for the park; the view from the tower takes in four states and the Hudson River valley, including New York City. Perkins died on June 18, 1920. He is buried in Woodlawn Cemetery in the Bronx, New York City. Wave Hill House In 1903, George W. Perkins purchased Wave Hill House in Riverdale, Bronx on the East side of the Hudson. He had been accumulating properties since 1895 to create a great estate along the river, including Oliver Harriman's adjacent villa on the site of what is now Glyndor House. Perkins planned the grounds to enhance the property's beautiful river views and added greenhouses, a swimming pool, terraces and the recreational facility; rare trees and shrubs were planted on the lawns, and gardens were created to blend with the natural beauty of the Hudson highlands. The property