Andrew Ellicott (1754-1820) was an astronomer and surveyor. Prior to the Revolutionary War, Ellicott taught mathematics in Baltimore. A skilled surveyor, he conducted surveys of the Territory of Washington and the Mason-Dixon line. He also made the first topographical study of the Niagara River ad Falls. Ellicott was a member of the American Philosophical Society. He tutored Meriwether Lewis in astronomy before Lewis set out with Clark for their famous expedition. In 1813, Ellicott accepted a post as a professor of mathematics at West Point Academy. He died there in 1820.
Near flawless example of the souvenir edition Hill's Plan of Washington, printed in red on linen. Hill's Plan of Washington is the earliest official map of the City of Washington, pre-dated only by the pirated miniature magazine edition of the Hill...
Scarce engraved folding map of Washington, D.C., representing one of the earliest derivations of Samuel Hill's version of the Ellicott plan. In January 1791, President Washington announced that the capital district would be a diamond-shaped tract, 10...
