The Headwaters Center for Lifelong Learning encores a program about the bloodiest year of the Vietnam War. Written By: Enterprise staff | × Wendell Affield (submitted photo) The Headwaters Center for Lifelong Learning (HCLL) presents its final online program for the spring with an encore presentation of Wendell Affield’s “Muddy Jungle Rivers.” Nominated in 2012 for the Minnesota Book Award, “Muddy Jungle Rivers” is a close-up look at life on a gunboat during 1968, the bloodiest year of the Vietnam War. Bemidji author Affield reads and discusses excerpts from his account of frustration, rage, terror, death, betrayal and search for redemption. In 2017, Affield wrote a blog about the events of March 14, 1968. According to the Bemidji Pioneer, the blog reached the sister of one of the men killed that day, and she contacted Affield. Kathleen Wiglesworth Perdue was 13 when her brother Ernest “Skip” Wiglesworth Jr. was killed, his boat hit by a mine on the Cua Viet River, 50 yards ahead of Affield’s boat.