Map Guide to the 
1790 – 1920
by
William Thorndale and William Dollarhide
“The Map Guide shows county outline maps at ten-year intervals,
the old county boundaries being superimposed over the modern lines…The maps
begin with 1790, the earliest federal census, and end with 1920…”
The
Map Guide Introduction gives information on the following in regard to
the Censuses:
The
Map Guide Appendix lists 13 pitfalls in mapping boundaries.
The
Bibliography lists the National Projects, General Sources and Each State’s
Sources.
The
If
you are a census researcher, and most genealogists are at one time or another,
you will find the Map Guide a valuable resource in locating your
ancestor between 1790 and 1920.
