Mark, if you go to historicaerials.com and find the golf course, I think you can go as early as about 1941 or 1945-so, you can see positioning of the greens, fairways, and other hazards at that point in time.
What is interesting is when you do a fade to, say, 2002 or as recent to the last Open, you can see where greens have been moved, tees shifted, fairways narrowed, etc. It's a fun exercise.