The Romeyn Beck Hough Papers include Hough's journals from 1882 to 1887, 1890 to 1894, and 1898 to 1900. There is also a July 6, 1908, letter to Hough from Melvil Dewey requesting a copy of Hough's book, Handbook of the Trees of the Northern States and Canada, along with an undated statement from Dewey, as president of the American Library Institute, commending Hough's book at a meeting of the Virginia State Library Association.