Nathaniel Lyon (1818-1861) was the first Union general to die in the Civil War. Killed at the Battle of Wilson's Creek, Missouri, he became the North's first war hero, famed as the man who saved Missouri for the Union. In Damned Yankee, chosen by Choice as an Outstanding Academic Book in 1991, Christopher Phillips portrays Lyon not as the savior of a border state threatened by secessionist extremists but as an unbalanced, monomaniacal Unionist...