John Plankenhorn
John Plankenhorn aka Rob Plankenhorn is an American sprint canoer who competed in the mid-1980s. At the 1984 Summer Olympics in Los Angeles, he competed in the C-2 1000 m event and in the C-1 500 m event.
John Plankenhorn aka Rob Plankenhorn is an American sprint canoer who competed in the mid-1980s. At the 1984 Summer Olympics in Los Angeles, he competed in the C-2 1000 m event and in the C-1 500 m event.