I
felt bad about the fact that the 1795 Map elsewhere on
the site doesn't include Accomac and Northampton
Counties.
Here
are three maps, Blunt's map of the
Chesapeake Bay region from 1861 and a Colton's railroad
map from 1881, which show the Eastern Shore of
Virginia. Blunt's map seems to contain errors, but as a
general guide it's what people had in 1861, and there may
be no errors on the Virginia part. The third is an 1893
Postal Route Map, which is very
interesting since it shows the land and water
transportation links and it shows the official post
offices.
...it's
probably a good idea to use your browser's "Download Link
to Disk" command on this second link as these files are
around 1MB in size.