With Jim Lipe here telling it like it was, I hate even to chime in. But I have heard Pete Dye tell that story, too, so here are a few details as I recall them.
Pete says there was a period in Pinehurst where they (Tufts or his super in the late 1940's) really poured on the sand topdressing. For what reason, I don't recall. Further, they dragged it in in circles, wearing down the outsides proportionally more than the middle, resulting in the crown. Perhaps the "outside" use of drag mats occurred because horses were still pulling them and they didn't want hoof prints on the green, but I don't really know.
Alice went to Rollins College and played competitively there, and Pete, if I recall, spent his WWII military service maintaining an AFB golf course and playing with the brass. So, they hung around Pinehurst a lot in those days, and he met Donald Ross there near the end of his life.
He was obviously interested in architecture then, even if only from a competitive amateur perspective. He always said it was his favorite course.