K. C. Douglas, born on November 21, 1913 in Sharon, Mississippi, was an American rural blues guitarist and singer. After moving to Vallejo, California in 1945 to work in naval shipyards, he entered the San Francisco/Oakland blues scene and first recorded the single "Mercury Boogie" (later renamed "Mercury Blues") in 1948 with Sidney Maiden, Ford Chaney and Otis Cherry; the track would later be covered by artists such as Steve Miller and Alan Jackson. Douglas released albums such as A Dead-Beat Guitar and the Mississippi Blues (1954), K.C.'s Blues (1961), and Big Road Blues (1961). He performed at the San Francisco Blues Festival in 1973 and 1974. He died of a heart attack in Berkeley, California, on October 18, 1975.
