William G. Kable died in 1920, and as the academy's sole shareholder, he bequeathed ownership to his widow and their children. Thomas Russell, who was promoted to President, completed Kable's expansion plans during the mid-1920s, adding a wall around the Kable Field parade grounds, a two-story Guard House at the center of the South Barracks quadrangle, and Memorial Hall on the campus's north end. The latter structure, which was three stories tall, housed the Mathematics and Foreign Language departments, classrooms, faculty apartments, a gymnasium, and three large recreation rooms.