Apuntes biográficos/históricosGeógrafo, grabador y editor. Geógrafo del Príncipe de Gales: London, Red Lyon Street near St. John's Gate (1732-1750)
Fuentes consultadas1. The British Catalogue of Printed Maps Jefferys, Thomas
2. The County of Buckingham..., 1788 Engraved by Thomas Jefferys, Geographer to His Majesty. MDCCLXXXVIII
3. Tooley's dictionary of mapmakers Jefferys [Gefferys], Thomas