The rider is Lonnie Carruthers who was the featured surfer in Woody Woodworth's first published photo's in an article titled: "Spotlight on a Rubber Duck" in the 1974 Volume 15, No. 1 edition of Surfer magazine known as the Santosha edition.
Well done to those of you who had a crack at it and in particular Okemah who got it all except who the rider was. I also have no idea what the location was either but somebody might know. PG?