"Just a thought on the question of rough.
Jones, MacKenzie, Tilly, Crane etc would have been of an age where they would have probabaly learned there golf at a time when mowing equipment was at best rudimentary. I believe that a lot of courses didn't have proper mowing equipment until the 1900's so, perhaps that was more so in the UK, and maybe there wasn't the same definition that we tend to expect on a golf hole between fairway and rough. Perhaps fairways were more defined by the passage of play and the trampling of grass under foot.
Could it be that they were looking to get back to a time when line of play was determined by the layout of the hole rather than the various lengths of grass between tee and green ?"
Bob and Niall:
Good thoughts and good points there about rough and apparently the evolution of it as well as some of the philosophical and architectural thinking about it in the early days.
I find some of the best descriptions of the way it once was and the way it eventually became are from Max Behr in a few of his seminal articles from the early to mid-1920s including, "Principles in Golf Architecture" (May, 1923), "Art in Golf Architecture" (May 1925) and "The Nature and Use of Penalty in Golf Architecture" (June. 1925).
Max being Max obviously those articles and some of his explanations are sort of ethereal, moral, labryrinthine etc but if one really takes the time to filter through all that, what he says is not just incisive but frankly brilliant too.
On the point of your mention of the onset of the mowing machine in golf, Niall, Behr had this to say:
"Unfortunately, the mowing machine has made the fairgreen an area of interest by itself. But should we look upon this as a definitive area and deal with it as we do in games? It would seem that if we allow such an idea to prevail we must inevitably destroy the sense of freedom and choice which is the very essence of such a sport as golf. In golf, nature, more or less modified, is our opponent; there can be no set limitations to space and time."
Apparently what Behr resisted the most is that golf and golf architecture should or would take on some philosophy or application of specifically defined and standardized areas and formulaics such as sharp divsions throughout of "good" and "bad" places to go (he looked at that as the work of "moralists" and not the work of Nature itself). That is obviously why he liked courses like TOC where those areas (between rough and fairway) were both wide and amorphous. He obviously felt that was the way nature was on her own I guess.
Apparently, the idea of prevalently mowing golf courses was anathema to Old Tom Morris as well.