Halleck: Lincoln's Chief of Staff is the biography of Union Army General-in-Chief Henry Halleck written by Stephen E. Ambrose and published in 1962.Library of Congress Online Catalog, Halleck: Lincoln's Chief of Staff. Retrieved 9 March 2017. In this book, which originated as a dissertation, Ambrose provides an interpretation contrary to previous assessments of this "controversial figure" from the American Civil War.Louisiana State University Press, Halleck: Lincoln's Chief of Staff, description of the 1996 edition. Retrieved 9 March 2017.

References