Robert Sayer (1725 - January 29, 1794) was an important English map publisher and engraver active from the mid to late 18th century. Sayer was born in Sunderland, England, in 1725. He may have clerked as a young man with the Bank of England, but this is unclear. His brother, James Sayer, married Mary Overton, daughter-in-law of John Overton and widow of Philip Overton. Sayer initially worked under Mary Overton, but by December of 1748 was managing the Overton enterprise and gradually took it over, transitioning the plates to his own name. When Thomas Jefferys went bankrupt in 1766, Sayer offered financial assistance to help him stay in business and, in this way, acquired rights to many of the important Jefferys map plates as well as his unpublished research. From about 1774, he began publishing with his apprentice, John Bennett (fl. 1770 - 1784), as Sayer and Bennett, but the partnership was not formalized until 1777. Bennett retired in 1784 following a mental collapse and the imprint reverted to Robert Sayer. From 1790, Sayer added Robert Laurie and James Whittle to his enterprise, renaming the firm Robert Sayer and Company. Ultimately, Laurie and Whittle partnered to take over his firm. Sayer retired to Bath, where, after a long illness, he died. During most of his career, Sayer was based at 53 Fleet Street, London. His work is particularly significant for its publication of many British maps relating to the American Revolutionary War. Unlike many map makers of his generation, Sayer was a good businessman and left a personal fortune and great estate to his son, James Sayer, who never worked in the publishing business. More by this mapmaker...

Braddock Mead (c. 1688 - 1757), also known as John Green, was an Irish cartographer and map engraver active in London during the middle part of the 18th century. Mead is one of the most interesting and colorful figures in cartography whose louche personal life sharply contrasted with the high standard of his maps. Mead was born in Ireland around 1688 and seems to have come from a good family and received a respectable education. His brother Thomas Mead held the position of Lord Mayor of Dublin in 1757. Braddock Mead left Dublin for London around 1717 where he plunged into vice, subsidizing his cartographic work with hack work and gambling. In 1728 Mead fell in with a plot to defraud a 12 year old Irish heiress, Bridget Reading, of her fortune by kidnapping and marrying her himself. Mead suffered jail time for the crime but was more fortunate than his partner, a fellow Irishman named Kimberly, who was hanged. As a cartographer Mead cannot have exhibited a more antithetical character. He held himself and others to the highest standards of accuracy and scholarship, and issued a call for greater transparency in the field of mapmaking. Mead worked with Ephraim Chambers on the Universal Dictionary, as well as with Cave and Astley in the publication of various travelogues and explorer's journals, notably Astley’s New General Collection of voyages and travels. Eventually he came to work for the publishing house of Thomas Jefferys, who saw through Mead's personal failings to appreciate his cartographic brilliance. Mead has been called the genius behind Jefferys and he seems to have had a hand in the production of many of Jefferys' most important maps. William Cumming notes that Mead

had a number of marked characteristics as a cartographer ... One was his ability to collect, to analyze the value of, and to use a wide variety of sources; these he acknowledged scrupulously on the maps he designed and even more fully in accompanying remarks. Another outstanding characteristic was his intelligent compilation and careful evaluation of reports on latitudes and longitudes used in the construction of his maps, which he also entered in tables on the face of the maps ... Mead's contributions to cartography stand out ... At a time when the quality and the ethics of map production were at a low ebb in England, he vigorously urged and practiced the highest standards; in the making of maps and navigational charts he was in advance of his time. For this he deserves due credit.