In 1923, the legislature authorized the creation of the State Park Service to administer the state parks and forests. New Jersey began to redirect its efforts from the development of these and other properties for recreational purposes instead of protecting or promoting the commercial potential of forested land. The state legislature established a commission to create a historic park along the Delaware River above Trenton, at the location where George Washington and Continental Army crossed the river on December 25, 1776 before the surprise attack on Hessian troops at the Battle of Trenton and the Battle of Princeton (January 3, 1777). The initial plans were defeated by a public referendum, but there was increased desire to complete these plans to establish a Washington Crossing Memorial Park in time for the 150th anniversary of American independence in 1926. The park was officially dedicated and opened to the public on June 4, 1927. In the wake of World War I, state forester Alfred Gaskill proposed a new public park along Kittatinny Mountain, "as the State’s memorial to its sons who had made the supreme sacrifice in the Great War". A few years later, Colonel Anthony R. Kuser donated his mountaintop estate at High Point (the state's highest elevation) to the state for a public park with an additional gift of $500,000 to erect a granite-clad obelisk to honor veterans. Construction of the monument began in 1928 and was completed in 1930.