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Andrew Ellicott (January 24, 1754 – August 28, 1820) was an American land surveyor who helped map many of the territories west of the Appalachians, surveyed the boundaries of the District of Columbia, continued and completed Pierre (Peter) Charles L'Enfant's work on the plan for Washington, D.C., and served as a teacher in survey methods for Meriwether Lewis.
A. E. (Andrew Ellicott) Douglass (July 5, 1867 in Windsor, Vermont – March 20, 1962 in Tucson, Arizona) was an American astronomer. He discovered a correlation between tree rings and the sunspot cycle , and founded the discipline of dendrochronology , which is a method of dating wood by analyzing the growth ring pattern.
In 1788, George Ellicott, a son of Andrew Ellicott, loaned Banneker books and equipment to begin a more formal study of astronomy. [30] [31] [32] During the following year, Banneker sent George his work calculating a solar eclipse. [30] [31] [29] In 1790, Banneker prepared an ephemeris for 1791, which he hoped would be placed within a published ...
Created Date: 8/30/2012 4:52:52 PM
George Ellicott (1760–1832) was a son of Andrew Ellicott, who with his two brothers (all were Quakers from Bucks County, Pa.) founded Ellicott's Mills (now Ellicott City), Maryland. [1] He was a mathematician, an amateur astronomer, a younger cousin of surveyor Major Andrew Ellicott and a friend of Benjamin Banneker .
On January 1, 1793, Andrew Ellicott submitted to the commissioners a report that stated that the boundary survey had been completed and that all of the boundary marker stones had been set in place. Ellicott's report described the marker stones and contained a map that showed the boundaries and topographical features of the Territory of Columbia.
In a 1969 publication, Bedini reported that Martha Ellicott Tyson, a Quaker abolitionist who was a daughter of George Ellicott (Andrew Ellicott's cousin) [11] and a co-founder of Swarthmore College, [12] had prepared an account about Banneker's alleged involvement with the survey and planning of the federal city within her papers, which her own ...
John Ellicott (miller) (1739–1794), son of Andrew Ellicott. Joseph Ellicott (miller) (1732–1780), together with his brothers John and Andrew, founded Ellicott's Mills, Maryland in 1772; Joseph Ellicott (surveyor) (1760–1826), surveyor and land agent for the Holland Land Company, son of Joseph Ellicott (miller). Ellicott R. Stillman (1844 ...