Yarrow's lot in 1859

    The earliest map of Yarrow's lot that I know of is the one published in 1861 based on A. Boschke's surveys.  It doesn't have street addresses, but it seems to show two buildings on the lot.  In the image below, Yarrow's lot would be beneath the "D" in "3324 Dent Place," which is in red. The map is one reason for believing that the eastern side of the backyard has not been disturbed by construction since Yarrow owned it.  The Boschke map for all of Washington is online at the Library of Congress.  http://memory.loc.gov/cgi-bin/map_item.pl