 Hohokus Township ceased to exist on November 7, 1944, when a referendum was passed creating Mahwah Township from the remaining portions of Hohokus Township.For twenty-five years, beginning in 1976, Mahwah hosted the A&P Tennis Classic, a tune-up for the U.S. Open tennis tournament held at the USTA Billie Jean King National Tennis Center in New York City's Flushing Meadows–Corona Park.The 75-room, three-story Darlington, also known as the Crocker Mansion, was built in 1901 for George Crocker, son of railroad magnate Charles Crocker.