I'm quite certain that RTJ had nothing to do with either Banff or Jasper, Stanley Thompson having finished both of them by 1927. Jones' affiliation was a business partnership of convenience in the 1930s with very little direct collaboration on the same projects. RTJ kept NYS and the upper US for himself while Thompson kept Canada - not that there was much work to be had in the 1930s when they partnered.
Ben Dewar . . .
I was at Manoir Richelieu in Nov. 2000, just before Tom McBroom undertook his transformation of the site. By then, only half of the holes resembled Herbert Strong's original, quirky design, the others having been altered or in 3-4 cases, completely rerouted. The layout was 5,981 yards yards, heavy clay, overrun with Poa annua, the bunkers in sad shape, and the course impossibly cramped and overcrowded for modern play. One oddity is that they had palm trees for 150 yard markers. During winters, they brought the trees into the clubhouse and stored them there until spring! (I kid you not).
McBroom undertook a rather ambitious renovation involving, as I recall, a considerable reworking and expansion of the back nine. He was to restore the holes in character and bunker strategy, but not at all in terms of routing, as that would have been unworkable owing to subsequent changes in the site, maintenance building, etc.