Section 7. The Department of General Services, with the approval of the Governor, is authorized and directed on behalf of the Commonwealth to grant and convey to the United States of America, as a gift, the premises known as the Monocacy Battlefield in Frederick County, Maryland, containing approximately one-half acre of land conveyed to the Commonwealth by deed of Kate Cavenaugh, dated September 14, 1908, and recorded in Liber 8th, No. 284, Folio 449 et seq.