American author, born in New York City on the 23rd of November 1816. He graduated at Columbia in 1835, studied law and was admitted to the bar, but subsequently devoted himself to literature. In conjunction with Cornelius Mathews he edited the Arcturus in 1840–42, and in 1847 he became editor of the Literary World, which was carried on by himself and brother George to the close of 1853. In 1854 the brothers engaged in the preparation of The Cyclopædia of American Literature. Mr. Duyckinck published a History of the War for the Union (3 vols., 1861–65); National Gallery of Eminent Americans (2 vols., 1866); History of the World (4 vols., 1870); and Biographies of Eminent Men and Women of Europe and America (1873–74). He died in New York on the 13th of August 1878.—Duyckinck, George Long, an American writer, brother of Evert; born in New York City on the 17th of October 1823. He graduated from the University of New York in 1843, studied law and was admitted to the bar. He was associated with his brother Evert in the editorship of the Literary World, and in the preparation of the Cyclopædia of American Literature, subsequently devoting himself to the biographical literature of the Protestant Episcopal Church. He was author of Life of George Herbert (1858), followed by lives of Bishop Thomas Ken (1859); Jeremy Taylor (1860); and Hugh Latimer (1861). He died in New York on the 30th of March 1863. See also “Washington Irving.”