Jeffrey Hammond

Jeffrey Hammond (born 30 July 1946, Blackpool) sometimes credited as Jeffrey Hammond-Hammond, is a former bass guitar player for the progressive rock band Jethro Tull.

Hammond adopted the name "Hammond-Hammond" as a joke, since both his father's name and mother's maiden name were the same. He also joked in interviews that his mother defiantly chose to keep her maiden name, just like Eleanor Roosevelt.