A replica of the circa-1880s Henry Glade Roller Mill at the Railroad Town outdoor living-history exhibit, with homes, trades and businesses depicting life on the High Plains in the 1800s at the Stuhr Museum of the Pioneer Prairie in Grand Island, Nebraska. Dismantled in 1936, the mill was nonetheless the precursor of a series of mills that ultimately became the giant ConAgra agribusiness monolith. A roller mill used large (often stone) rollers to crush grain on flat plates. Photo by Carol Highsmith, 2021.