Ryan, now that my amnesia has lifted momentarily, strikes me that the Everson book with ISJ's portrait just might be The Bad Guys.
I've got that one, too, vayapues, similarly uncracked for many years.  I'll have to see if I can find where it's buried.

I have wondered over the years whether the veteran Hollywood art director Stan Jolley was related to ISJ (how could one doubt it?). Now I know: http://www.mouseclubhouse...-jolley/stan-jolley1.htm
Great site!  Thanks for the link.  I. Stanford has 358 credits on the IMDB but if you add in the multiple episodes of some TV shows he has 456 screen appearances.  And he worked until two years before his death.