The first detailed sea chart of the Chesapeake Bay was by Walter Hoxton and was published in 1735. That map however was only detailed in the waters that he was familiar with, the western shore tributaries of the Bay in particular were lacking definition. Anthony Smith’s map was the first to improve this situation. Smith was a pilot in Saint Mary’s County, Maryland and had assisted the Navy in its surveying of the Potomac River. A further source of Smith’s was the famous Fry and Jefferson map. This is the third state of five. Up to now the alterations were purely in the title, this state includes two minor additions those being legends upper right of the upper sheets (not present), and upper left of this pair being ‘Directions for Sailing between the Middle Ground and the Horse Shoe.’ A large inset on the right details Herring Bay. Morrison & Hansen ‘Charting the Chesapeake p. 32; Papenfuse & Coale p. 31; Pritchard & Taliaferro pp. 224-7; Stevens & Tree ‘Comparitive Cartography’ no. 15.