[1] Self-taught on bass, Herbert is best-remembered for his stint as a member of Louis Armstrong's All-stars.
He worked with Marian McPartland, Don Elliott, the Sauter-Finegan Orchestra band, and Sol Yaged from 1955 to 1958, and other swing and mainstream players, often appearing at the Metropole.
Herbert toured the world with Armstrong during 1958 to 1961, appearing on a number of records and film sound tracks and mostly functioning as a supporting player.
After leaving Armstrong and his All–Stars, Mort mostly worked as a lawyer, playing music only on a part-time basis (including with Herb Ellis).
[3] Herbert died on June 5, 1983, in Los Angeles, California, at the age of 57 from a heart attack.