"Guitar playing, a person named Charlie Chirstian, guitarist for Benny Goodman, T-Bone Walker, and Carl Hogan-- I think those three would be on guitar." Interview in Rolling Stone, June 14, 1969.
Chuck Berry was at U.C. Berkeley when he gave that interview-- or answered questions at the student union there. He's nothing if not consistent. In his autobiography he describes his first days learning to play the guitar.
"I picked up a lot of new swing riffs and ideas from Ira's playing, which was similar to the style of Charlie Christian's."
In 1967 Berry recorded the Goodman/Christian song "Flying Home" for Mercury records, then recorded his own reworking of the song for Chess on "Back Home." The Mercury version is jazzy; the Chess version, more of a rock song, is full of optimisim and energy-- my favorite Chuck Berry instrumental.