Benjamin Henry Latrobe II
American civil engineer, railroad official

Benjamin Henry Latrobe II (December 19, 1806 – October 19, 1878) was an American civil engineer best known for pioneering railway bridges, notably the Thomas Viaduct, and serving as chief engineer for the Baltimore and Ohio Railroad. His innovations in wooden bridges and curved masonry viaduct designs significantly advanced American civil engineering in the 19th century. Latrobe also collaborated with Wendel Bollman, a prominent bridge designer, who contributed to early developments in iron truss bridges. His engineering survey plans for crossing the Allegheny Mountains were later incorporated into legislation guiding the construction of the Pacific railroads, establishing his lasting impact on national infrastructure.
Family
Benjamin Henry Latrobe II was born in Philadelphia, Pennsylvania, on December 19, 1806, Latrobe was the youngest son of Benjamin Henry Latrobe, who, six years previously, had married his second wife, Mary Elizabeth Hazlehurst (1771–1841), the eldest daughter of Issac Hazlehurst, a Philadelphia merchant and business partner for Robert Morris.
Latrobe married Maria Eleanor "Ellen" Hazlehurst (1806–1872) of Altoona, Pennsylvania on March 12, 1833. They had four sons (two of whom survived childhood) and three daughters.
Their eldest son, Charles Hazlehurst Latrobe (1833–1902), moved to Florida, where he married and later joined the Confederate States Army. A civil engineer like his father and grandfather, Charles H. Latrobe later moved back to Baltimore, where he served as the city's chief engineer for 25 years and continued to design public buildings and bridges noted for their beauty. His brother, Benjamin Henry Latrobe, III (1840–1901) became an Episcopal Church priest and rector of the Church of Our Savior in Silver Spring, Maryland.
The public source identifies “Benjamin Henry Latrobe II” as american civil engineer, railroad official. This brief keeps that definition visible, then builds a research path around Benjamin, Henry and Latrobe.
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Biographical claims are most persuasive when dates, appointments and relationships can be traced to records created close to the events described. The source revision retrieved here is dated Sep 3, 2026. The linked authority identifier is Q13629303. VIAF identifies the subject as 2024520. The Library of Congress control number is no89015117. 4 of 4 selected statements include explicit references; 0 carry qualifiers and 1 use preferred rank. The first chronological checks are 1806, 1878, 1771 and 1841.
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This entry incorporates text from “Benjamin Henry Latrobe II” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.