Timothy Dwight Porter (1797–1880), publisher and educator, was born in Hadley, Massachusetts, and moved with his family in about 1807 to New Haven, Connecticut, where he attended the Hopkins Grammar School. Porter graduated from Yale College (later Yale University) in 1816. He spent a year tutoring in Lynchburg before returning to Yale to study medicine, earning a medical degree in 1820. From around then until 1823 Porter held a position as a tutor at South Carolina College (later the University of South Carolina). In the latter year he moved permanently to New York City. Porter worked as an editor of the Religious Chronicle and the Albion before establishing the New York Atlas, which ended publication in 1833. He and his brother Theodore W. Porter then became proprietors of the Washington Institute, a school that they operated until Theodore Porter’s illness and 1855 death led to his brother’s retirement (Benjamin W. Dwight, The History of the Descendants of John Dwight, of Dedham, Mass. [1874], 1:243–4; Catalogue of the Trustees, Rectors, Instructors and Alumni of the Hopkins Grammar School of New Haven, Connecticut. 1660–1902 [1902], 43; Catalogue of the Officers and Graduates of Yale University … 1701–1910 [1910], 90; Obituary Record of Graduates of Yale College Deceased during the Academical Year ending in June, 1881 [(1881)], 7–8; Daniel Walker Hollis, University of South Carolina [1951–56], 1:75; DNA: RG 29, CS, N.Y., New York, 1830, 1840, 1870, 1880; New York Evening Post, 13 Dec. 1880; gravestone inscription recorded in Ct: Charles R. Hale Collection).