Rene Deknight
Biography
René DeKnight (December 5, 1913 – January 24, 2004) was an American pianist, composer and arranger. He was a member of The Delta Rhythm Boys. He arranged and played on many of their influential work, including "Dry Bones" and "Take The A Train". DeKnight also played with Ella Fitzgerald and later became the arranger and composer for The 5th Dimension. He is the older brother of American visual artist Avel de Knight.
Bio from Wikipedia