The Judah P. Benjamin Confederate Memorial at Gamble Plantation Historic State Park, also known as the Gamble Mansion or Gamble Plantation, is a Florida State Park, located in Ellenton, Florida, on 37th Avenue East and US 301. It is home to the Florida Division United Daughters of the Confederacy (UDC). The mansion was listed on the National Register of Historic Places as the Robert Gamble House on August 12, 1970. Its columns and two-foot-thick walls are constructed of tabby, a regional material developed as a substitute for brick.