Great moments in the blues and their rock 'n' roll covers: William "Big Foot" Harris, "Bullfrog Blues," circa 1927-29

Little is known about William "Big Foot" Harris, who recorded a dozen or so songs in the late 1920s, of which this has become the best-known over time:

The greatest covers of this number are all by Rory Gallagher, of which there are many versions on YouTube.  Here's one of my favorites, from 1976: