Bev and Jerry,
Just so you won't feel like you missed something, Hank didn't write all of the songs he sang. Most of them, yes, but not all. Early in the program he was shown singing Cool Water, which was written by Bob Nolan (Born Robert Clarence Nobles, April 1, 1908, New Brunswick). I didn't get a chance to watch the whole thing yet, but I'll bet if you check there might be others.