J R Robinson
Biography
Joseph Russel Robinson (July 8, 1892 – September 30, 1963) was an American jazz, ragtime, dixieland, and blues pianist and composer. He was a member of the Original Dixieland Jass Band. He was the jazz composer who wrote the jazz and pop standard "Margie" and the Grammy Hall of Fame inductee "Singin' the Blues".
Bio from Wikipedia