This red brick building opened in March 1924 as the third school on this site. It had 10 classrooms, a study hall, a small office, two modern lavatories, and a gymnasium-auditorium. From 1924 to 1953, it was the only public school in Derby, with the high school on the second floor and the grade school on the ground floor. During Derby’s rapid residential growth in the 1950s, multiple schools were built in Unified School District 260. Since 1953, the building has served various purposes, including some middle school, or junior high, functions until about 2000, and then became the community’s historical museum. In 2012, USD 260 gave the building to the Derby Historical Society so it could continue operating the museum. In 2014, the United States Department of Interior placed the building on the National Register of Historic Places. It remains the only building in Derby on the National Register.