John:
The actual number of Donald Ross designs is somewhere between 400 and 415.
Golf is played on approximately 375 of those courses today. They have been modified, renovated, restored etc. etc. but in many places the greens have gone untouched.
Wannamoisett: Home of the Northeast Amateur since 1960. I believe that par has been broken only a few times in this 72 hole medal play event.
Salem- 2001 Senior Open
Pinehurst # 2: Open 1999 and 2005
Oakland Hills: Ryder Cup
Orchards: 2004 US Womens Open
Oak Hill: 2003 PGA Championship
Over 130 USGA Tournaments have been layed on Donald Ross golf courses, including US Opens at Brae Burn, Inverness, Skokie, Oakland Hills, Worcester CC, Scioto CC, Interlachen , Oak Hill, Congretioal and Pinehurst.
Donald Ross was a very efficient and industrious individual. He was the first of the Architects that had a major golf course building force, Donald Ross Associates. At times DJR & Assoc. employed upwards to 8,000 employees building 26 coursse at once.
Mr. Ross was an exceptional talent in strategy, bunkering and green building. A great number of his greens survive today and though the courses have been unbunkered, rebunkered etc. etc. Ross is still ahead of the curve with his greens.