In the News

Southern New England Antiquarian Booksellers Announces New Show Sponsorships

Southern New England Antiquarian Booksellers (SNEAB) held our inaugural meeting of 2018 on April... read more

Guernsey's Auction Brings Together African American Historic & Cultural Treasures

New York, NY — What do The Jackson 5’s (and Michael Jackson’s) first recording... read more

Film Director James Ivory Donates His Collection of Scripts, Notebooks & Correspondence to the Morgan Library

New York, NY— The Morgan Library & Museum has received an important collection of... read more

Christie's to Offer 178 Artworks from the Personal Collection of Sir Quentin Blake

This July, Christie’s will present Quentin Blake: A Retrospective; Forty Years of Alternative Versions,... read more

Personal and Historical Artifacts from the Life of Walt Disney at Van Eaton Galleries

Los Angeles, California - Van Eaton Galleries, one of the world’s premier animation artwork... read more

"Birds of America" Sells for $9.65 Million, Leads Christie’s Spring Sale of Books & Manuscripts

New York - Christie’s New York Books and Manuscripts sales total $12,853,250, across the... read more

A Celebration of Robert Osborne is 100% Sold at Bonhams

New York—On June 13, the sale of Bonhams and TCM Present ... A Celebration... read more

Make Way for the Illustrations of Robert McCloskey 
at the Cincinnati Art Museum Starting July 20

Cincinnati, OH — The Cincinnati Art Museum is proud to celebrate Hamilton, Ohio’s own... read more

Follow us on TwitterLike us on Facebook
Auction Guide
Advertise with Us
2015 Bookseller Resource Guide
Fine Maps

Walk the Line

Two and a half centuries ago, Charles Mason and Jeremiah Dixon started their epic survey along what would become the most celebrated border in America Jeffrey S. Murray Jeffrey S. Murray is a former senior archivist with Library and Archives Canada.

Less than a century after its creation, the Mason-Dixon line entered American popular culture, not for its technological achievement, but as the boundary that separated the North from the South, the free states from slave states. Courtesy of the Library of Congress.

Standing on a small hill overlooking Dunkard Creek, Charles Mason and Jeremiah Dixon aligned their latest survey post “and heaped around it Earth and Stone three yards and a half diameter at the Bottom and five feet High.” The conical monument was about thirty miles short of Pennsylvania’s southwest corner and “233 Miles, 13 Chains and 68 Links” from their starting point, “the Post mark’d West.” Behind the forty-man survey crew lay several hundred miles of near impenetrable Pennsylvania woodland; ahead were wandering bands of Shawnee marauders, the mortal enemies of their Iroquoian escorts. If Mason and Dixon continued to push the line west to its completion, as their financial supporters back in England had requested, they were sure to find themselves embroiled in an Indian war. The leader of the native guides recognized the danger and took issue with the surveyors’ hesitation to call a halt to their fieldwork. His emphatic declaration that he “would not proceed one step further Westwards” left the Englishmen with only one option. Dunkard Creek would have to be the end of the line.

The first map to show the boundary surveyed by Charles Mason and Jeremiah Dixon was printed in Philadelphia by Robert Kennedy in 1768. Courtesy of the Library of Congress.
Detail showing the first twenty-five miles of the Mason-Dixon survey. Courtesy of the Library of Congress.

The 1763–67 survey by Mason and Dixon marked the culmination of an eighty-year border dispute between Pennsylvania and Maryland—a dispute which at times had degraded into some of the worst bloodshed witnessed on the American frontier. When the lands were originally awarded in the mid-to-late seventeenth century to two of England’s aristocratic families, the Penns and the Calverts, ambiguous wording in the royal grants and faulty maps misplaced Maryland’s northern border within the limits of Philadelphia. A clear interpretation of the grants was obviously required, along with a demarcation of the border on the ground.

Page 1 | 2 | 3 | Next