1974 Press Photo Evel Knievel's father Robert during conference in Twin Falls

Robert Knievel, father of daredevil Evel Knievel, tells a news conference in Twin Falls, Idaho, Friday he's been trying for years to talk his son out of his attempt to jump the Snake River Canyon. The elder Knievel will be on hand when the effort is made Sunday afternoon.

Photo is dated 1974.

Photo measures 8 x 10.25 inches.