The American Legion, The Veterans of Foreign Wars of the United States, The Disabled American Veterans of the World War, Italian American War Veterans of the United States, Incorporated, The Jewish War Veterans of the United States, The Catholic War Veterans, The Polish Legion of American Veterans, The Marine Corps League, the AMVETS and The American Veterans Committee and their respective local posts may receive or hold in trust gifts, testamentary or otherwise, and may purchase or receive gifts of such real estate as may be necessary or advantageous for the conduct of their business.