Exhibits Explore our exhibits by clicking on the photo and discover the secret facts about each display by hovering over the targets. Dairy Farming Innovative technology increased productivity and sanitation in dairy farming during the 20th century. Nichols Sanatorium Founded by Dr. Perry Nichols, the Nichols Sanatorium treated approximately 70,000 cancer patients between 1912 and 1956. Mid-20th Century Kitchen Explore four examples of kitchens throughout the 20th century in our interactive exhibit, The Rural Way of Life. The African American Communities in Andrew County After the Civil War, people freed from slavery formed several communities in Andrew County. Children’s Chores/ Chicken Coop Children may have fetched eggs as a part of their daily chores.