If you need to find a county boundary for a state & can’t justify spending the money for a book or a program, HeritageQuest has made it easier. They have put maps online from “Map Guide to the U.S. Federal Censuses”, 1790-1920, By Wiliam Thorndale and William Dollarhide.
On HeritageQuest, click browse in the census area. Pick a year & a state, and then click “View State Map”. You will be able to view that year’s county boundaries (black lines) & currant boundaries (white lines). Just plot the current location & compare it to the one for that year.
To find out if HeritageQuest is offered from your local library website or one in your state please visit http://www.eogen.com/HeritageQuestOnline .