Ah yes, I've always been a great Slim Whitman and Elton Brit fan because of their yodeling style of voice.
My Mom and Dad grew up in the Panhandle of Texas where Bob Wills and The Texas Playboys played the local dances when they came thru. I knew the ALL THE WORDS to Roly Poly when I was 3 years old and I too remember those 78s and the "pure" raw sound of the post war music.
Have to admit that my favorite version is by my "sweethearts" The Quebe Sisters Band - - - check'em out sometime.
As Waylon said "When you cross that 'ol Red River, Hoss, Bob Wills is still the King!"