210 S. Jefferson. What a difference 20 years makes in the world of architecture. The Modern Movement style of the 1950 Protection Grade School (NRHP), now South Central Grade School, can easily be identified by its clean and simple lines. It provides an interesting contrast to the detailed 1930 Collegiate Gothic design of the 1930 Protection High School (NRHP), now South Central Middle School. The two schools, side by side and connected by a walkway, reflect obvious changes in architecture in just two decades.