1. RP 4539/1 Reference (shelfmark): RP 4539/1 Title: Scope & Content: GEORGE III, King of England. Document Signed, and countersigned by George Canning, appointing Francis James Jackson as Ambassador to the United States Creation dates: 7 July 1809 Collection Area: Western Manuscripts Languages: English Date Range: 23 Aug 1990 Extent: 6 photocopies