Wilton Felder...

Wilton Felder.  Pretty sure he is not related to Don.  But here is more on the guy:  Wilton Lewis Felder (1940 - ) plays both saxophone and bass.  He is best known for being a founding member of The Crusaders.  Felder, Wayne Henderson, Joe Sample, and Stix Hooper founded the group while in high school in Houston!  Felder has been in the group for over thirty years.  Felder also worked as studio or seesion musician o the west coast, playing mostly bass, for various soul and R&B musicians, and was one of the in-house bass players for Motown Records, when the record label opened up operations in Los Angeles, California, in the early 1970s.  He played on recordings by the Jackson 5 like "I Want You Back" and "The Love You Save," and for Marvin Gaye. He has also played bass for soft rock groups like America, and Seals and Crofts. Also of note was his contribution to the John Cale album, Paris 1919, and Billy Joel's Piano Man and Streetlife Serenade albums. He was one of three bass players on Randy Newman's Sail Away (album) (1972) and Joan Baez Diamonds & Rust. Felder also anchored albums from Joni Mitchell and Michael Franks.