1. Red Cloud's War: The Bozeman Trail, 1866-1868 (2 Volumes) by John D. McDermott (Arthur H. Clark, 2010).
The conflicts with Northern Plains tribes described in this two volume set had their origin in the 1863 gold discoveries in Montana. Among others clashes covered in the books are the famous Fetterman Massacre, Wagon Box Fight, and Hayfield Fight.
2. Marking Civil War History in the Ozarks: A Guide to Civil War Markers and Monuments in Twenty-Four Southwest Missouri Counties by Frances Carver Black and Sally Napier Bueno (Mary Whitney Phelps Tent DUV, 2010).
In addition to the 140 markers and monuments highlighted and the 250 photographs, there is a useful amount of background information contained in the book.
3. Abraham Lincoln, Esq.: The Legal Career of America's Greatest President edited by Roger Billings and Frank J. Williams (Univ Pr of KY, 2010).
This is a wide ranging collection of essays discussing the significance of Lincoln's law practice to history.
4. Fugitive Slave on Trial: The Anthony Burns Case and Abolitionist Outrage by Earl M. Maltz (U Pr of Kansas).
A paperback reprint.