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Andrew Ellicott (surveyor)

Andrew Ellicott
Andrew Ellicott.jpg
Andrew Ellicott in miniature portrait, 1799
Born (1754-01-24)January 24, 1754
Buckingham Township, Bucks County, Pennsylvania
Died August 28, 1820(1820-08-28) (aged 66)
West Point, New York
Occupation Surveyor and town planner
Known for Surveying many territories west of the Appalachians, the boundaries of the District of Columbia, and completing Pierre (Peter) Charles L'Enfant's plan for Washington
Spouse(s) Sarah Brown

Andrew Ellicott (January 24, 1754 – August 28, 1820) was a U.S. 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.

Andrew Ellicott was born in Buckingham Township, Bucks County, Pennsylvania as the first of nine children of Joseph Ellicott (1732 – 1780) and his wife Judith (née Blaker or Bleaker, 1729 – 1809). The Quaker family lived in modest conditions; his father was a miller and clockmaker. Young Andrew was educated at the local Quaker school, where Robert Patterson, who later became a professor and vice provost at the University of Pennsylvania, was his teacher for some time. Andrew was a talented mechanic like many of the family and showed some mathematical talent, too.

In 1770, his father, together with his uncles Andrew and John, purchased land on the Patapsco River and set up a new milling business there, founding the town of Ellicott's Mills in 1772. Three years later, Andrew married Sarah Brown (1756/8 – 1827) of Newtown, Pennsylvania, with whom he would have ten children, one of which died as a child. When the Revolutionary War broke out, Andrew enlisted as a commissioned officer in the Elk Ridge Battalion of the Maryland militia despite his Quaker upbringing. During the course of the war, he rose to the rank of major, a title he would keep as an honorific throughout his life.


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