Links
Bureau of Land Management, Government Land Office
This page will take you to land records sold to private individuals by the United States. Click on "Land Patents" or "Survey Plats and Field Notes" to find the individual you're looking for. If you know the state in which the land was purchased, that would help, too.
Dave Rumsey Historical Map Collection
Historical maps that can be searched by the name of a person whose property is listed on the map. Rare maps from 16th century America, Africa, Europe and others. Over 100,000 maps. A genealogist's dream come true!