Niels Ebbesen Hansen, a pioneering horticulturist renowned for his groundbreaking contributions to agriculture and plant breeding, dedicated his career to enhancing agricultural practices through the introduction of new plant varieties. The N.E. Hansen Papers offer an exploration of his achievements, including articles, bulletins, and circulars from his tenure at the South Dakota Experiment Station. Additionally, contributions from Helen Hansen Loen provide valuable insights into his personal and professional life. The collection serves as a valuable resource for understanding Hansen's legacy and his contribution to agricultural science.