And it wasn't just John Wilkes Booth! He had 3 accomplices, and his mother (of all people) was involved! So when I saw this brochure published by visitmaryland.org I was intrigued! There's a large map that details all the places in the journey, from as far north as Baltimore, through DC and ending at Garrett's Farm in Virginia.
What impressed me about the Visit Maryland site is that this brochure is available to download! I've done it here for you, so you can either print it from them or from here. Either way, what a fascinating story! Thanks to the National Archives for the great photo of John Wilkes Booth.