Williams worked in oil, watercolor, pastel, and mezzotint, painting landscapes, still lifes, and harbor and street scenes in an Impressionist style. She exhibited work at the Paris Salon[3] during her stay in France, and after her return to the United States she showed at the American Watercolor Society, the Art Club of Philadelphia, and elsewhere.[2] A number of her portraits are cataloged by the Catalogue of American Portraits at the National Portrait Gallery, including a 1902 self-portrait and a 1903 portrait of Ellen Axson Wilson, the first wife of President Woodrow Wilson.[4] Her portrait of judge John W. Riely hangs in the Virginia Supreme Court,[5] and her portrait of Commodore Matthew Fontaine Maury is owned by the University of Virginia.[6]