Lucius "Lu" Watters (December 19, 1911 in Santa Cruz, California – November 5, 1989 in Santa Rosa, California) was a trumpeter and bandleader of the Yerba Buena Jazz Band in the "West Coast revival" of Dixieland music. This is relational to trad jazz as the musicians tended to be white and had little or no actual connections to New Orleans.
He played trumpet by the age of 11 and had his first work on a cruise ship. He then worked for Bob Crosby before deciding to form a Dixieland-style band. He founded the Yerba Buena Jazz Band in 1939 and it would be a leading force in the Dixieland revival for the next 11 years, with a small off-period caused by the war. In 1950 he broke up the band and in 1957 he retired from full-time playing.
In his life after music, he studied geology and lectured on the subject at Sonoma State University. His main area of interest was coastal earthquake conditions. He also became a chef.
In 1963 he made a bit of a return by playing with Turk Murphy at anti-nuclear rallies. He opposed building a nuclear plant on the San Andreas Fault. This related to his interest in geology and study of earthquakes. After this he returned to his life as a geologist and chef.