Complex sentence: There is persuasive evidence that Peter Wyngarde's birth name was Cyril Louis Goldbert: the author J. G. Ballard has written that he and his family knew Wyngarde as Cyril Goldbert in Shanghai during World War II, and other contemporaries have confirmed this.
Split into simpler sentences: There is persuasive evidence that Peter Wyngarde's birth name was Cyril Louis Goldbert. The author J. G. Ballard has written that he and his family knew Wyngarde as Cyril Goldbert in Shanghai during World War II, and other contemporaries have confirmed this.