Atlas of Historical County Boundaries Project

This project (and the resulting website) is sponsored by the Newberry Library in Chicago, Illinois, contains information on county boundary changes in the United States.


One Response to “Atlas of Historical County Boundaries Project”

  1. Kat says:

    I first saw a published copy of the Mississippi Atlas of Historical County Boundaries, John H. Long, editor and compiled by Peggy Tuck Sinko (1993) at the Mississippi Department of Archives and History. I later purchased a copy of this book and find it very useful in my research. Even a small change in a county boundary could pose a problem in finding the needed records. Having this information online for the other states is very useful.

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