The Withers Building, also known as the Winthrop Training School or W.T.S., is an historic building complex located at 611 Myrtle Drive on the campus of Winthrop University in Rock Hill, South Carolina. The complex consists of three parts: the old Presbyterian High School, the Main Classroom - Office Building and the new Gymnasium. The old two-story Presbyterian High School was built in 1891 and bought in 1910 by the state for what was then Winthrop College: The South Carolina College for Women to be used as its teacher training school.