[1] Humble was born in Livingston, County Durham, England, and played professionally from his teenage years.
[1] He worked with Ronnie Scott from 1953 until 1956, and recorded with Tony Crombie, Victor Feldman, Arnold Ross, Kenny Graham, and Jimmy Deuchar in the 1950s.
Humble played with Kurt Edelhagen in Cologne from 1957 to 1967,[1] in addition to recording with Heinz Kretschmar and Dusko Goykovich.
He played with Kenny Clarke and Francy Boland in 1961, and soon after became the lead altoist with the Clarke-Boland Big Band.
[1] He toured with the group until 1968, when he was seriously injured in a mugging in Cologne; Phil Woods temporarily took over lead alto in Clarke-Boland while he recovered.