"Traveling Blues: The Life And Music of Tommy Ladnier" by Bo Lindström & Dan Verhettes has just been published by Jazz'Edit in a limited edition of 500 copies.
http://www.jazzedit.org/Traveling-blues.html
I have read the Fletcher Henderson chapter, which was published in the two latest IAJRC Journals (Vol.42 nº2 - June 2009 & Vol.42 nº3 - September 2009), and it combines outstanding biographical research and thorough musical analysis. The book should be a must-read!