Dictionary of Welsh Biography

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EVANS , LEWIS ( c. 1700 - 1756 ), cartographer ;

believed to have been b. in the parish of Llangwnnad, Caerns. He became a land surveyor in Pennsylvania . In 1749 he published A Map of Pensilvania, New Jersey, New York and the three Delaware counties , including notes on thunder and lightning (revised ed. 1752 ). His most notable map is A General Map of the Middle British Colonies in America ( 1755 ); boundary disputes were decided on its authority and much use was made of it during the Seven Years War . In the Analysis which was published with the map the author expressed his opinion on the French claim to land which led to severe criticism in an anonymous article in The New York Mercury , 5 Jan. 1756 , to which Evans responded within five days by publishing a second treatise. He had intended publishing maps of all the separate states, but he d. 12 June 1756 before completing the task; he was at the time in custody in New York on a charge of libel against the governor Robert Hunter Morris . His map was used unacknowledged many times between 1755 and 1814 by London map publishers . In 1776 it was published in America by Thomas Pownall with his Topographical Description of North America to aid Evans ’ family which was in straightened circumstances.

[He m. in 1743 Martha Hoskins (d. c. 1746 ) at Christ Church , Philadelphia and they had a daughter, Amelia (and possibly other children).]


  • Henry N. Stevens , Lewis Evans, His Map of the Middle British Colonies in America; a comparitive account of eighteen different editions published betwwen 1755 and 1814 , 1920 (2nd ed. 1920);
  • Dictionary of American Biography . ( 1931 ; amend his place of birth);
  • C. A. W. Pownall , Thomas Pownall, governor of Massachusetts Bay, author of The letters of Junius with a supplement comparing the colonies of Kings George III and Edward VII (1908) ( 1908 );
  • P. L. Phillips , A List of Geographical Atlases in the Library of Congress (Washington, 1909-20) (1909-20);
  • Cat. of the Printed Maps, Plans and Charts in the British Museum (1885) ( 1885 );
  • [ Lawrence Henry Gipson , Lewis Evans to which is added Evans' A brief account of Pennsylvania (Philadelphia, 1939) ( 1939 );
  • Gwreiddiau Gwynedd Roots cylchgrawn Cymdeithas Hanes Teuluoedd Gwynedd journal of the Gwynedd Family History Society , Apr. 1987;
  • Y Casglwr pob peth printiedig , 34, Mar. 1988] .


Mary Gwyneth Lewis, (1912-99), Aberystwyth

Published date: 2001