Gibson County Training School, a historic training school for Negroes in Milan, was constructed in 1926 with $2,500 in required donations from Milan Negro citizens, $16,000 in public school funds, and $1,500 from the Julius Rosenwald Fund. Booker T. Washington of Tuskegee Institute and philanthropist Julius Rosenwald had partnered to help build public schools for southern Negro students. The building followed a six-teacher Rosenwald Fund plan and included four large classrooms, an office, an industrial training room, and an auditorium with bathrooms for grades 1-10. The 11th grade was added in 1928 and the 12th grade in 1929. Its first graduating class, in May 1930, included Negro students from Milan and surrounding towns. Additions to the original building included a north wing in 1942, 1953, and by 1961; a south wing in 1942 and 1958; a gymnasium in 1951 and 1955; a building trades room in 1960; a band room in 1964; and a southeast wing in 1967 including a 15 acre parcel. In 1961, Gibson County Training School was renamed Polk - Clark High School, and the last high school graduation was in May 1970. From August 1970 to February 1996, Polk - Clark School housed all Milan K - 2 elementary students. The GCTS / Polk - Clark High School Alumni Association, Inc., chartered in October 1995, represents former educators, students, graduates, and their heirs. On August 2, 1996, the Milan City Board deeded the building and land to the GCTS / PCHS Alumni Association, Inc. The association chartered The Milan Polk - Clark Enrichment Center on April 1, 1998. On March 12, 2012, Gibson County Training School was placed on the National Register of Historic Places by the National Park Service of the U. S. Department of Interior.