1754-1820.
Ellicott, a Quaker, was raised in Bucks County, Pennsylvania. His father was a prosperous miller whose family founded Ellicott City, Maryland in 1775. Andrew Ellicott was trained to be a mathematician and surveyor. He conducted several large surveys with David Rittenhouse, the Philadelphia astronomer, mathematician, and clockmaker. President Washington in 1791 asked Ellicott to survey the bounds of the District of Columbia. The following year Washington asked him to complete L'Enfant's plan for the city. Ellicott made some changes to L'Enfant's plan. He changed the alignment of Massachusetts Avenue, eliminated five short radial avenues, added two short radial avenues southeast and southwest of the Capitol, and named the city streets. In less than one month Ellicott had a plan ready for the engravers. A few months later Ellicott, like L'Enfant, found himself at odds with the Commissioners and resigned from the project.
Washington Map Society. Se även wikipedias artikel, 'Andrew Ellicott'.
Se Claes Visscher.
1661-97.
Kartograf, från 1687 styrmansdirektör vid amiralitetet, en befattning närmast motsv. såväl generallotsdirektörens som chefens för sjökarteverket i vår tid. G. utarbetade nya författningar rörande lotsväsendet, vilka sedaan länge förblevo gällande, och upprättade och utgav tills. med sin företrädare W. v. Rosenfeldt den första svenska sjöatlasen 1694, 'General hydrographisk chart-book öfwer Östersiön', vilken s.å. även utkom i engelsk och holländsk uppl. Genom detta kartarbete tillvann sig G. en framstående plats inom den svenska kartografiens historia.
Worked at the Survey office, from 1681 in marine measurement and production of maps under Admiral Werner von Rosenfeldt. In 1681 appointed principal at the Admiralty. In 1687 Gedda was appointed director of pilots, taking over von Rosenfeldt's responsibilities for the pilots and hydrographical surveying. They continued collaborating, and in 1695 produced the first printed Swedish marine atlas to provide a correct, albeit very general, view of the Kattega...
Bland arbeten.
General hydrographisk chart-book öfwer Östersiön.
Svensk Uppslagsbok. Sveriges sjökartor – A. Hedin.
Stockholm - Mentzer ca 1860.
Grekland, Bulgarien, Rumänien. - Weiland 1832.
