Complex sentence: Edward was a noted demonologist, author, lecturer, World War II US Navy veteran, and former police officer, while his wife Lorraine was a professed clairvoyant and a light trance medium who worked closely with her husband.
Split into simpler sentences: Edward was a World War II US Navy veteran and former police officer who became a noted demonologist, author, and lecturer. His wife Lorraine was a professed clairvoyant and a light trance medium who worked closely with her husband.