Wayne,
I typed a long response, but it disappeared into a puff of electrons, so this is the abbreviated version. I think of you as a thoughtful, thorough researcher, so I’ll share what I know about Ballards in print. The Dutcher book, as you have been informed and discovered already for yourself , is the undisputed leader in the field. Not perfect but way ahead of the only other two I am aware of specifically and completely devoted to Ballards.
These others will probably seem redundant, but for the sake of completeness, I’ll mention both of them. The George Layman book, of which you’ve already heard, is fairly easily found and although it has some serious shortcomings, is probably worth owning or at least perusing. It does a fair job of enumerating the features of the various models.
Possibly the earliest “complete” treatment of Ballards was actually a listing and discussion of one man’s collection. The Milwaukee Museum’s report of the Henry J. Nunnemacher Collection was done by Eldon Wolfe in the ‘30s(?) and although original copies turn up from time, there have been two additional printings. I find this book to be useful, and until Dutcher it was the definitive source. There is a copy of the 2nd printing on fleaBay right now for a “Buy it Now” of $35.99 OBO with free shipping. Reference;
(You need to Login or Register to view media files and links) Our friend Vall knows a lot more about Ballards than I ever will, but I’ve used these three books to hold my own among the mere mortals of the Ballard World. Drop me a PM if I can be of more help.
Best regards,
Charlie the Frog