Seeing "Blue Eyes Crying in the Rain" reminded me of Willie Nelson, who has penned a number of songs made famous by others. He did not write that particular piece, but he did create "Crazy," the Patsy Cline song for which she is most remembered. He has a rather unique spot in the country pantheon, as did the late Johnny Cash. Both wrote and performed songs which could easily bridge the gap between "country" and folk. Did Frank or Slim have any connection to either?