The mansion was lavishly decorated with statues, paintings, and tapestry that Stotesbury had collected over the years, a collection later bequeathed to the Philadelphia Museum of Art. The French 18th-century furniture was purchased through Lord Duveen, who had guided Stotesbury in assembling the second of America's great collections of English portraits, and the floor was lined with exquisite Oriental rugs, also purchased under the guidance of Duveen. Duveen also advised Stotesbury in purchases of French sculpture to decorate the huge mansion.