Autograph letters signed to Anna Louisa Ingalls from Mary S. Logan (to "My dear friend," dated January 12, 1888); Cornelia Adele Strong Fasett (January 17, 1888); Mrs. Carrie Scott Harrison (July 6, 1888); John James Ingalls (Octoer 16, 1888); J.J. Ingalls (December 8, 1889); from William Starke Rosencrans to Mrs. Anna Louisa Ingalls (January 12, 1898); and from Henry Augustus Ward (December 18, 1902).