Jack van Poll was born in 1934 in Roosendaal, Holland. He started playing piano at the age of four. After the liberation of the Second World War in 1945, he discovered the first Bebop tunes on V-discs and on the American Forces Network Channel.
With his teen age trio The Rose Valley's, he took part in the Dutch Jazz Competition in Amsterdam in 1946. From the early Fifties on, he backed up single artists from the U.S.A., who performed in Holland and Belgium, like Don Byas, Ben Webster, Johnny Griffin, Clark Terry, Tony Scott, Ted Curson, Buddy DeFranco and many others. In the late seventies he opened the September Jazz Club in Antwerp, Belgium. In 1984 he founded the September Jazz Records label.