Like Ben, I've always been amazed that not one of Thompson's 'students' managed to produce a single outstanding golf course. For whatever reason, none of them did. Although, Bob Moote's still working, so perhaps he still has a chance!
Robinson's most notable work was probably the remodelling Thompson's original design at St. George's in preparation for the 1968 (?) Canadian Open. He reworked the green at the par 3 3rd, moved the 4th green, moved the 9th green, reworked the 10th green (I think? It's been redone on several occasions), and moved the 15th green, amongst other changes to bunkering, etc.
I've researched the evolution of St. George's and am not yet convinced that any of those Robinson changes resulted in improvement. In fact, the 4th and 15th were regarded as two of the very best par 4 holes in Canada when Robinson decided to move those greens, changing both holes to par 5s. And Thompson's original 3rd hole, as shown in an old photo taken from the tee was perhaps the best par 3 on the course.
These days, Tom McBroom, Doug Carrick and Graham Cooke link themselves to Thompson via Robinson and Howard Watson. McBroom and Carrick apprenticed under Robinson, and Cooke worked with Watson for a time.