In 1871, the U.S. Army Corps of Engineers began construction of the traffic circle, then called Pacific Circle, as specified in L'Enfant's plan. On February 25, 1882, Congress renamed it "Dupont Circle", and authorized a memorial statue of Samuel Francis Du Pont, in recognition of his service as a rear admiral during the Civil War. Unveiled on December 20, 1884, the statue was sculpted by Launt Thompson, and the circle was landscaped with exotic flowers and ornamental trees. Several prominent duPont family members deemed it too insignificant to honor their ancestor, so they secured permission to move the statue to Rockford Park in Wilmington in 1917, and commissioned Henry Bacon and Daniel Chester French to design the fountain that sits in Dupont Circle today. In 1920, the current double-tiered white marble fountain replaced the statue. Daniel Chester French and Henry Bacon, the co-creators of the Lincoln Memorial, designed the fountain, which features carvings of three classical figures symbolizing the sea, the stars and the wind on the fountain's shaft.