Shark attack, 1974-09-02 (Unprovoked)
Location: Franklin Point, San Mateo County, California, USA
Time: 17h30
Activity: Scuba diving (but on surface)
Victim: Dale Webster (M, age 48)
Injury: Minor bite on foot & swimfin
Fatal: N
Species: White shark, 5 m to 6 m [16.5 to 20'] 
Source: D. Miller & R. Collier, R. Collier, pp. 56-57; J. McCosker & R.N. Lea