A cousin of Elmore James and Sonny Boy Williamson II, Homesick James Williamson was a blues musician who had his roots in country blues.
Interestingly he performed on Elmore Jame's best known track "Dust my Broom" and others like "The Sky is Crying" as session musicians (bass duties).
He is well known for being an adept slide guitar player and singer. He spent time in the 30's and 40's in Chicago as a sideman and and recorded many solo albums until his death in 2006.
Here's a track from Homesick James album "Blues on the Southside" from 1964: