Shark attack, 1972-05-28 (Unprovoked)
Location: Bird Rock, near Tomales Point, Marin County, California, USA
Time: 13h30
Activity: Free diving for abalone
Victim: Helmut Himmrich (M, age 32)
Injury: Bitten on legs & buttock
Fatal: N
Species: White shark, 4.4 m to 5 m [14.5' to 16.5'] 
Source: D. Miller & R. Collier, R. Collier, pp.48-50; Evening Tribune (San Diego) 7/17/1972; H.D. Baldridge, p.78; J. McCosker & R.N. Lea