Book Source Online Mercer County Illinois

The Book, "Past and Present of Mercer County, Illinois" can be read online by going to http://www.archive.org/stream/pastpresentofmercerco
It is well worth the read, both historically and for genealogy info. Authors name is Isaac Newton Bassett, and if you have ancestors from this region, around the 1800's, you may be able to access info from this book. excellent resource.