I've got tons of great history books. Try Winston Churchill. His four-volume
HISTORY OF THE ENGLISH SPEAKING PEOPLES and six-volume
WORLD WAR II sets are superb. I know you preferred American history but there is a lot of American history in those book as well.
I can't think of the authors right now but THE LONG FUSE and PAUL REVERE'S RIDE are books I recently read on the American Revolution worth checking out.
The Long Fuse: How England Lost the American Colonies, 1760-1785 is by Don Cook (Atlantic Monthly Press, 1995)
Paul Revere's Ride is by David Hackett Fischer (Oxford University Press, 1994)