I'm not sure of the accuracy of this tool... but it is definitely interesting. Enter a surname (last name) into the form and you'll get a map of the United States showing the distribution of people with this surname within the 50 United States. This map is often helpful when trying to determine a starting point for genealogy projects. The source of this data is the 1850 Census, 1880 Census, 1920 Census, and 1990's phone books. Note that the Census data is a sampling of 1 in 100 names, so the 1990 data is the most accurate. It just might give you a hint where you need to look. http://genbooks.hypermart.net/search/distribution.html