Final answer:
The farmer-owned grain elevators that started in the Midwest are called the Grange. The Grange was an organization that advocated for farmers' rights and fought for government regulation of grain elevators.
Step-by-step explanation:
The name for the farmer-owned grain elevators that started in the Midwest is the Grange. The Grange was an organization created in 1867 by Oliver Hudson Kelly, also known as the Patrons of Husbandry. They believed that farmers could improve their conditions by creating cooperatives to pool resources and obtain better shipping rates, as well as prices on seeds, fertilizer, machinery, and other necessary inputs. The Grange also fought for government regulation of grain elevators they believed were acting as monopolies and charging unfair rates.