Morley was a trustee of the Royal Asiatic Society, and during the last year of his life also its librarian. He died at 35 Brompton Square, London, on 21 May 1860.[2]
Plate of Atabeg coins from History of the Atábeks of Syria and Persia
"Letters to the Secretary of the Royal Asiatic Society, by W. Morley, Esq., and Professor Duncan Forbes, on the Discovery of part of the Second Volume of the 'Jami al Tawarikh,' supposed to be lost." The Journal of the Royal Asiatic Society of Great Britain and Ireland vol. 6, no. 1 (1841), pp. 11-41.
A Digest of Cases decided in the Supreme Courts of India (London, 2 vols. 1849–50; new ser. vol. i. only, 1852)
Catalogue of the Historical Manuscripts in the Arabic and Persian Languages in the possession of the Royal Asiatic Society (London, 1854)
Morley also edited in 1848, for the Society for the Publication of Oriental Texts, Mir Khwand's History of the Atábeks of Syria and Persia, with a description of Atabeg coins by William Sandys Vaux.[2]