[1] As often with King, several of the tracks are re-recordings of songs he had recorded before.
[4] "Neighborhood Affair" originally dates back to 1953 and was the b-side of "Please Hurry Home".
The title track "Guess Who" had appeared on his first ABC album, Mr. Blues, in 1963.
"You Shouldn't Have Left" was first recorded in 1959 and released on (The Soul of) B.B.
[7] A 1965 recording of "Five Long Years" was first released by Kent on the album The Jungle.