John Ward Dean, whose long and valuable services as librarian of the New England Historical and Genealogical Society has made all investigators in that most patient of studies indebted to him, has written a History of the Gerrymander, 1892; Descendants of Thomas Deane, 1883; Memoir of Rev. Nathaniel Ward; Memoirs, Rev. Michael Wigglesworth; Hon. Daniel Messinger; Charles Wesley Tuttle, and with Hon. Daniel Messinger, The Messinger Family in Europe; and with Charles Wesley Tuttle, Cahn Brown, by Herman von Holtz, for which he was singularly fitted through his personal knowledge of John Brown.
In 1895 he published Sketches from Concord and Appledore, and in 1905 Cambridge Sketches, both intimate biographies of famous men. In 1892 appeared Real and Ideal in Literature, and in 1897 Modern English Prose Writers.
He also wrote Four Great Venetians and the Midsummer of Italian Art; a Life of Otto von Bismarck; Life and Genius of Nathaniel Hawthorne; the Life and Public Service