The United States Secret Service In The Late War [Paperback]

As described in the sub-title: The Authors Introduction to the Leading Men at Washington, With the Origin and Organization of the United States Secret Service Bureau, and a Graphic History of Rich and Exciting Experiences, North and South. Perilous Adventures, Hairbreadth Escapes, and Valuable Services of the Detective Police. Much on the assassination of President Abraham Lincoln, and the subsequent pursuit and capture of John Wilkes Booth.

General Baker was the first Chief of the Bureau .