Shows block numbers. Also covers Georgetown. "Entered according to Act of Congress on the 31th [sic] day of January 1820 by Peter Force of the District of Columbia." From Peter Force's A national calendar, 1820. Includes ill. and index to points of interest. Available also as a digital image through the Harvard University Web site. Electronic reproduction. Cambridge, Mass. : Harvard Geospatial Library, 2008 Georeferenced image for use in a GIS.
Shows block numbers. Also covers Georgetown. "Entered according to Act of Congress on the 31th [sic] day of January 1820 by Peter Force of the District of Columbia." From Peter Force's A national calendar, 1820. Includes ill. and index to points of interest. Available also as a digital image through the Harvard University Web site. Electronic reproduction. Cambridge, Mass. : Harvard Geospatial Library, 2008 Georeferenced image for use in a GIS.