Shark attack, 1971-10-02 (Unprovoked)
Location: Sea Ranch, Sonoma County, California, USA
Time:  14h00
Activity: Scuba diving
Victim: Calvin Ward (M, age 30)
Injury: Bitten on legs
Fatal: N
Species: White shark, 5 m to 6 m [16.5' to 20']  
Source: D. Miller & R. Collier; R. Collier, p. 48