Shark attack, 1969-07-20 (Unprovoked)
Location: Pigeon Point, San Mateo County, California, USA
Time: 13h00
Activity: Freediving for abalone (at surface)
Victim: Robert Colby (M, age )
Injury: Foot bitten, minor injury
Fatal: N
Species: White shark, 5 m [16.5'] 
Source: D. Miller & R. Collier; R. Collier, p. 42