Marvin Cyril Trudeau, 89 of Dakota Dunes, SD. It is with great sadness that we announce the passing of our beloved husband and father. He passed away peacefully after a long illness on May 19, 2026.Marvin was born on March 22nd, 1937 in Jefferson, SD to Cyril and Marie (LaCroix) Trudeau. He graduated from Jefferson H.S. in 1955. Following graduation he joined the Navy and served on the USS Crook…