North Oaks Hill Farm Historical Society Spring Event on May 17, 2024. Guest speaker is author and historian Jim Stolpestad. Mr. Stolpestad is author of Great Northern Iron: James J. Hill’s 109-Year Mining Trust. This is a fascinating story about the Great Northern Iron Ore Properties Trust, the brainchild of James J. Hill and his son in response to the Federal Government’s trust-busting efforts personally directed by President Teddy Roosevelt. Two long-time residents of North Oaks played important roles in the creation and termination of the Trust. One in creation of the trust and one in the termination of the trust.