From the description of Autograph letters signed : 9 Albert Mansions, S.W., [London] ; and Hotel du Rhin, Place Vendôme, Paris, to W. Davison, 1876 Mar. 30 and 1879 July 22. (Unknown). WorldCat record id: 270126456From the description of Autograph letter signed : Foley House, to Frederic Sullivan, [n.d.]. (Unknown). WorldCat record id: 270125318From the description of Autograph letters signed : 47 Claverton Terrace, S.W. ; Hotel Windsor, Boulogne-sur-mer ; and elsewhere, to Arthur Sullivan, 1855 Jan. 23 to 1880 Sept. 22. (Unknown). WorldCat record id: 270125319