Burr, David H., 1803-1875Prime meridians: Greenwich and Washington. "David H. Burr (Late topographer to the Post Office)". At lower right-hand corner: John Arrowsmith.128 x 99 centimetersJPEGUMN_ALMA:9923073960001701engDavid H. Burr, Geographer to the House of Representatives of the U.S. (Washington, D.C.?), 1839PublicMap of Illinois & Missouri : exhibiting the post offices, post roads, canals, rail roads &c.MapsIllinoisMissouri1839University of Minnesota