Delta – William Plenty July 28, 2018 All Stories Delta. An introduction to the sounds and sights, history and science of Delta Marsh. Inspired by the book by Glen Suggat and Gordan Goldsborough. A documentary film from William Plenty. Here’s the trailer. Leave a Reply Cancel Reply Your email address will not be published.CommentName* Email* Website Notify me of follow-up comments by email. Notify me of new posts by email.