[1] He performed in the United States and Europe and made many recording with Duke Ellington, Billie Holiday, Johnny Hodges, and others.

[2][4] During the 1930s, he played in bands led by Willie Bryant, Benny Carter, Cab Calloway, Fletcher Henderson, Andy Kirk, and Teddy Wilson.

Webster cried when he heard Blanton had died, but as baritone player Harry Carney recalled, "After he had a drink or two, he'd change".

[2][11] During this time he worked with Raymond Scott, John Kirby, Bill DeArango, Sid Catlett, Jay McShann, and Jimmy Witherspoon.

In 1956, he recorded an album with pianist Art Tatum, supported by bassist Red Callender and drummer Bill Douglass.

In the late 1950s, he formed a quintet with Gerry Mulligan and played frequently at a club in Los Angeles called Renaissance.

It was there that the Webster-Mulligan group backed up blues singer Jimmy Witherspoon on an album recorded live for the Hi-Fi Jazz label.

[14] Webster appeared as a sax player in a low-rent cabaret club in the 1970 Danish blue film titled Quiet Days in Clichy.

In 1971, Webster reunited with Duke Ellington and his orchestra for a couple of shows at the Tivoli Gardens in Copenhagen; he also recorded "live" in France with Earl Hines.

Webster's sole legal heir, Harley Robinson of Los Angeles, gladly assigned his rights to the Foundation.

Over the years, several American musicians have visited Denmark with the help of the Foundation, and concerts, a few recordings, and other jazz-related events have been supported.