I stumbled across a couple of articles from 1923-24 relating to Ross at what is now the Grove Park Inn course (formerly Asheville Country Club) while looking for something entirely different. I remembered this old thread, so thought I would post them here. Both articles are large pieces on Asheville generally, so I have cropped them down to the relevant portions in order to make the images readable. The first is from the June 24, 1923 Charlotte Observer...
The second is from the June 8, 1924 Richmond Times Dispatch...
Both articles credit Ross with laying out the course. The first can be read to imply that he did so in roughly 1913, although that certainly isn't clear. While I don't think these articles are necessarily dispositive, they tend to support the Inn's position that Ross designed the course.