I would be remiss not to mention that Sixteen Tons was a Merle Travis song, recorded for the bona fide classic album[0] Folk Songs of the Hills. Both songs are classics, but the Travis version deserves to be heard. https://www.youtube.com/watch?v=3I15_KUsOzs

0: The album was released in 1947 prior to the introduction of the 12" LP, so it was originally released as a literal album of multiple 78rpm singles. It is one of the first concept albums. https://en.wikipedia.org/wiki/Folk_Songs_of_the_Hills