Map Guide to the U.S. Federal Censuses, 1790-1920 by William Thorndale and William Dollarhide
County lines have shifted over the years. Many ancestors never moved but their county of residence may have changed from one census to another because of these shifting county lines. For instance, Virginia in 1840 included what is now West Virginia. Use the census maps in this map guide to find the correct county for the census you are using. This reference volume has large detailed maps for each state and their counties for each census. The maps are clear and easy to read. All boundary changes are marked clearly and are easy to understand.
