Elmore James - Dust My Broom

Elmore James (vocals, guitar); Leonard Ware (bass); Frock O'Dell (drums); Sonny Boy Williamson (harmonica)songfacts

Elmore was known as The King of the Slide Guitar and he had a unique guitar style, he was noted for his use of loud amplification and his stirring voice.

There is a long and learned article in Wikipedia, I like

The most famous guitarist who admired Elmore James was Jimi Hendrix. Early in his career Jimi styled himself variously as 'Maurice James' and subsequently as 'Jimmy James'
James is mentioned in The Beatles' song "For You Blue": while John Lennon plays the slide guitar (James' trademark), George Harrison says, "Elmore James got nothin' on this, baby."

An early cover of a number by Mac - posted just for the fun of it

Dust My Broom