The J.D. Marshall, a 154-foot wooden commercial vessel built for the lumber trade then converted to a sand barge, capsized in a storm in June 1911, killing four crew members.
The preserve will be marked by buoys to protect the remains of the ship and keep boats from dropping anchor there. The Marshall's huge cast-iron propeller is at the park, and other artifacts are on display at the Indiana Dunes State Park Nature Center.
A dedication ceremony has been scheduled to take place at 11am, on September 30th, at Indiana Dunes State Park.