"The article that Bryan posted is interesting because having just ploughed through about a decades worth of articles from the Glasgow Evening Times from the 1890's it is clear we are not just talking about the evolution of golf course architecture but also the evolution of the terminology."
Niall:
Terminology and the evolution of it in golf and architecture and PARTICULARLY in the Rules of Golf is extremely important and certainly was back then. I doubt Macdonald would have written that letter to the R&A Rules Committee if it wasn't important and certainly pretty hazy back then as to what some words and terms meant, particularly in a Rules of Golf context which what that correspondence was all about and after.
"In quite a few of these articles "bunker" is interchangeable with "hazard" and is used to describe all sorts of hazards including walls, trees etc."
One of the problems you can see in that correspondence (and is still true of its understading amongst some golfers today) is that all bunkers are hazards but not all hazards are bunkers. Of course I'm only speaking here in the context of the Rules of Golf.
It seems in that correspondence that included Macdonald, perhaps Park and the R&A Rules Committee they were all having a bit of a problem getting on the same page not about what a "Hazard" was but what-all the definition of a "bunker" was or should be. To be honest with you that is still somewhat of a problem today!
"One word that has yet to come up is the word "fairway". Why ? Fairly logical if you think about it, this was the era of primitive horse drawn mowers which only a few courses may have had. The rest would give the local farmer grazing rights to help keep the grass down. Imagine standing on the tee and looking at an open field with no "correct" or at least defined way to go. Sounds to me thats as strategic as you can get."
First of all, the term "fairway" has never been used in the Rules of Golf. It has obviously been used in golf and architectural terminology, particularly in the 20th century but back in that day it was usually called "Fairgreen" (and way before that "swards") which also included the putting green and the reason was back then it was pretty hard to tell where one ended and the other began and that's obviously why the DEFINITION in the Rules of Golf back then actually measured the putting green itself as 20 yards from the pin excepting any hazards within that 20 yard dimension.