 Interest in the park waned in the 1910s, and Frothingham wished to sell his half of the property.After failed attempts to sell the park to MGM and Federal Feature Film Corporation of New York, Williams and Frothingham sold it to a trio of businessmen (John Nallin, Joe Jennings, and Ben Sterling) in 1919.After a tumultuous period in which the three partners disagreed about park management (at one point, Rocky Glen Park was divided in two by a fence), Sterling ultimately gained complete control in 1950 and renamed the park Sterling's Rocky Glen, the name he used for his half of the park when it was divided (eventually the name was shortened to Sterling's).