Above, the Ballantine's Illustrated History of World War II book, "Spitfire". Authored by John Vader, the book fell into my lap in or around the year 1973. At the time I no doubt thought that "Vader" had an interesting ring to it. (It sounded mean. "Viper." "Adder.")
When Star Wars came along in 1977, a gentleman by the name of Darth Vader hit the marketplace.