Thomas Jefferys

1719 – 1771), "Geographer to King George III", was an English cartographer who was the leading map supplier of his day. He engraved and printed maps for government and other official bodies and produced a wide range of commercial maps and atlases, especially of North America.

The recorded working language is English. The field of work recorded is cartography, geography and publishing house. Places of work recorded in the authority are London. Work by Thomas Jefferys is recorded in the collections of Musée national des beaux-arts du Québec, Library of Congress, British Library, Bibliothèque nationale de France and Newberry Library.

As "Geographer to the Prince of Wales", he produced A Plan of all the Houses, destroyed & damaged by the Great Fire, which began in Exchange Alley Cornhill, on Friday March 25, 1748. He produced The Small English Atlas with Thomas Kitchin, and he engraved plans of towns in the English Midlands.

• Illustration — Part of the Map of the Most Inhabited Part of Virginia In 1754, Jefferys published a Map of the Most Inhabited Part of Virginia which had been surveyed by Joshua Fry and Peter Jefferson in 1751. The next year he published a map of New England surveyed by John Green, and in 1768 he published A General Topography of North America and the West Indies in association with Robert Sayer. In 1775, after his death, collections of his maps were published by Sayer as The American Atlas and The West-India Atlas. The American Atlas was reissued in 1776, expanded in response to growing hostilities between the British and the Americans; it contains maps by Joshua Fry, Peter Jefferson, Lewis Evans, and others. In 1754, Jefferys took a robust and public stance in the controversy with the French on the boundary of Nova Scotia and Acadia, which arose in the time and context of Father Le Loutre's War, which is commonly held to have begun in 1749 and ended with the expulsion of the Acadians in 1755. Jefferys posthumously lent his name in 1776 to The American Atlas: Or, A Geographical Description Of The Whole Continent Of America. It contains works by, amongst others, Joshua Fry and Peter Jefferson.

Jefferys commissioned surveys and published maps of several English counties. These were large-scale maps with several sheets for each county; in the case of Bedfordshire and Huntingdonshire the scale was two inches to one mile (1:31680). • Bedfordshire, surveyed 1765 by Scots cartographer John Ainslie, published 1765, reprinted 1983 • Huntingdonshire, surveyed 1766, published 1768 • Oxfordshire, surveyed 1766-67, published (by Andrew Dury) 1767 • County Durham, published 1768 • Buckinghamshire, surveyed 1766-68 by John Ainslie, published 1770, reprinted 2000 • Westmoreland, surveyed 1768, published 1770 • Yorkshire, surveyed 1767-70 by John Ainslie, published 1771-72 • Cumberland, surveyed 1770-71, published 1774 • Northamptonshire, survey (originally by Thomas Eyre) revised 1771, published 1779 After the death of Jefferys, these maps were re-issued by other map publishers such as William Faden.

Thomas Jefferys is recorded as cartographer, writer, businessperson, geographer and publisher.