There is hereby designated for addition to the Jefferson National Expansion Memorial 1

(hereinafter in sections 450jj–3 to 450jj–9 of this title referred to as the “Memorial”) approximately one hundred acres in the city of East Saint Louis, Illinois, contiguous with the Mississippi River and between the Eads Bridge and the Poplar Street Bridge, as generally depicted on the map entitled “Boundary Map, Jefferson National Expansion Memorial 

Within the area designated in accordance with this section, the Secretary of the Interior may acquire lands and interests in lands by donation, purchase with donated or appropriated funds, or exchange, except that lands owned by the State of Illinois or any political subdivision thereof may be acquired only by donation.