The property acquired under the provisions of section 450aa of this title shall constitute the George Washington Carver National Monument and shall be a public national memorial to George Washington Carver. The Director of the National Park Service, under the direction of the Secretary of the Interior, shall have the supervision, management, and control of such national monument, and shall maintain and preserve it in a suitable and enduring manner which, in his judgment, will provide for the benefit and enjoyment of the people of the United States.