Adelaide Johnson was an American sculptor whose work is displayed in the U.S. Capitol and a feminist who was devoted to the cause of equality of women. The high point of her professional career was to complete a monument in Washington D.C. in honor of the women's suffrage movement. Alva Belmont helped to secure funding for the piece, Portrait Monument to Lucretia Mott, Elizabeth Cady Stanton, and Susan B. Anthony, which was unveiled in 1921. This piece was originally kept on display in the crypt of the US Capitol, but was moved to its current location and more prominently displayed in the rotunda in 1997.