Walter Sedgwick is a long-time forest landowner and conservationist who has worked with many organizations dedicated to land and animals, serving on the Boards of the National Audubon Society, The Nature Conservancy-Florida, Bat Conservation International, Island Conservation, the Pacific Forest Trust, the Land Trust Alliance and the Turtle Survival Alliance. He currently chairs the Program Committee of WCS.

Walter is the founder of the Red Hills Land Conservancy (now known as Tall Timbers). Walter also helped to found the Turtle Conservation Fund in 2002. With his Walter C. Sedgwick Foundation, he has donated a major collection of Japanese Buddhist sculpture and early Chinese ceramics to Harvard University’s Arthur M. Sackler Museum.