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...
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The second is from the June 8, 1924 Richmond Times Dispatch...
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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.