When Mr. Digerness put volume 3 out there for purchase, he got
a LOT of criticism for his heavy emphasis on his Grandfather (?)
Jesse's exploits, rather than keeping it all about the railroading.
As I understood it, sales dropped and Mr. Digerness' interest in
doing more was crushed, either through his own initiative or that
of his publisher.
I discovered the DSP&P by accident when I traveled 285 from BV
to Denver in 1977. I stopped and looked at this miniature scaled
railroad (what was left) along the highway a few miles east of Trout
Creek Pass and was intrigued. Before this whole world wide web
thing made it easy, learning what I had been looking at there proved
a challenge from Seattle (when I got home and tried to research it),
and it was Digerness' books that really set the hook into me for the
pinnacle of cool in American railroading. Been brain damaged ever
since.
"Duty above all else except Honor"