1. Wieland & Sons Lumber Co 644 220th St W, Winthrop, IA 50682 Coordinate: 42.46661,-91.741 Phone: (319) 935-3936
2. Winthrop Building Supply 844 220th St W, Winthrop, IA 50682 Coordinate: 42.46787,-91.74095 Phone: (319) 935-3375