Wilhelm Utermann

Wilhelm "Utz" Utermann (3 December 1912 – 11 August 1991) was a German writer, journalist, screenwriter and film producer.

He used the following pseudonyms: ''William Utermann'', ''William Roggersdorf'' and ''Mathias Racker''. Utermann was a former editor of the Nazi Party's newspaper and had been a Nazi bestselling author.

As Wilhelm Roggersdorf, he edited Erich von Däniken's ''Chariots of the Gods?'' and extensively rewrote the book.

He was married to Clementine zu Castell-Rüdenhausen. Provided by Wikipedia