Clarkson Farm Complex is a historic farm and national historic district located near Greeleyville, Williamsburg County, South Carolina. It encompasses 8 contributing buildings and 1 contributing site with buildings dating from about 1896 to 1928. They include the main house, store, smokehouse, garage, stable/garage, tenant house, pumphouse, wellhouse and pecan grove. The main house was built about 1905, and is a two-story, frame I-house on a brick pier foundation. The Clarkson Store was built about 1896, and is representative of one of few surviving rural commercial buildings. The pecan grove was planted in 1922.