North Mankato, Minnesota - William "Bill" August Rittenhouse of North Mankato, MN, loving husband to Janice Ann Rittenhouse, and a U.S. Marine Veteran passed away at the Minneapolis VA Medical Center on June 20, 2026 from complications of dementia, and cancer. Bill is survived by his wife of 54 years, 3 children, 4 grandkids, his sister, and 2 brothers.