Obit: Rolland Neal Mammenga
Rolland N. Mammenga, 91, of Hermantown, MN passed away on Monday November 17. 2025 in Essentia Health, St. Mary’s Medical Center. He was born on the family farm in Waterbury Township, MN on February 19, 1934, to William and Ida Mammenga. Rolland graduated from Mahnomen High School Class of