Montgomery was a fascinating guy, and, in my opinion, well worth learning more about. No affiliation, etc., but I can recommend this book:
http://www.amazon.com/Quest-Flight-J.../dp/0806142642
Not to mention William Wellman's slightly-obscure classic movie, Gallant Journey. I don't know Montgomery's story well enough to attest to the accuracy, but it's a very enjoyable film.