migrated within Virginia to the western uplands called the Piedmont. He was among the initial settlers of Albemarle County, Virginia in 1737 and acquired property over the years to farm tobacco. By the time of his death, he held 7,200 acres. He was also a cartographer and surveyor. In 1746, he and Thomas Lewis ran the famous "Fairfax Line"—a surveyor's line between the headwaters of the Rappahannock and North Branch Potomac Rivers—which established the limits of the "Northern Neck land grant" (also known as the "Fairfax Grant"). In 1749, Peter Jefferson, along with Joshua Fry, Thomas Walker, Edmund Pendleton and others, established the Loyal Company of Virginia, and were granted 800,000 acres (3,200 km2) in present-day Virginia, West Virginia and Kentucky. In the same year, with Joshua Fry, Jefferson extended the survey of the Virginia-North Carolina border, begun by William Byrd II some time earlier. The detailed Fry-Jefferson Map, cited by his son Thomas in his 1781 book Notes on the State of Virginia, was produced by him and Fry. In 1754 and 1755, he served in the Virginia House of Burgesses. See also Thomas Jefferys, in 1776 producer of The American Atlas: Or, A Geographical Description Of The Whole Continent Of America John Harvie Sr., Peter Jefferson chief executor and guardian of Thomas North Carolina–Tennessee–Virginia Corners Notes References Further reading 1708 births 1757 deaths American cartographers American people of English descent American planters American surveyors American slave owners Fathers of presidents of the United States Fathers of vice presidents of the United States House of Burgesses members Jefferson family People from Albemarle County, Virginia People from Chesterfield County, Virginia Randolph family of Virginia Virginia colonial people