Michelle Obama At The Press Conference For Michelle Obama Presents Inaugural Ball Gown To The First Ladies Collection, The Smithsonian National Museum Of American History, Washington, Dc March 9, 2010. Item # VAREVC1009MRABN004 Posterazzi Dresses worn by American First Ladies at the Smithsonian's National Museum Of American History : r fashionhistory Go Inside the Smithsonian's 'First Ladies' Gallery The Smithsonian Institute Museums were not at the top of my list before visiting Washington, DC. However, I was pleasantly surprised by the interesting exhibits. Two of my favorites were THE FIRST