Sandy Lodge is probably Vardon's highest profile design, but Frances Markes was actually the man behind that project, and it was very unusual project and course. I also believe Vardon's active involvement at Woodhall Spa was somewhat spotty.
Evidently Vardon had a relationship with Carters headed by Reginald Beale, this what Hawtree wrote, "Beale wrote Lawns for Sports (1924). Although, as the title suggests, its range is much wider, golf figures in the first three chapters...His experience of golf course architects has clearly made him cautious but he seems to have been delighted to take over where they left off which, in the case of Vardon, was quite early in the piece if not actually on Day 1." Its my understanding Brocton Hall was actually designed by Beale.
On the other hand Vardon wrote a hell of a lot about the golf architecture, more than many of his contemporaries, and interestingly he was one of the most active critics/analysts of American golf architecture at a very important time.