Axeman and rodman on survey for Erie Canal under Benjamin Wright, in charge of construction 17 miles of canal, 1819, became superintendent in charge of flow of traffic on 50 miles of completed canal, 1823. Principal assistant to Wright on Delaware and Hudson Canal, 1825, became chief engineer, 1827. Became chief engineer Mohawk and Boston R.R., 1830.
Designed swivel truck which enabled locomotives to travel 60-80 miles per hour, 1832. Chief engineer Schenectady & Saratoga R.R. Became chief engineer Chenango Canal, New York, 1833.
Chief engineer eastern half Erie Canal, 1836. Became chief engineer Croton Aqueduct, New York, 1836, directed completion of dam, Ossining and Harlem River bridges. Engineer in charge of new source of water supply for City of Boston, 1846-1848.
Chief engineer for various railroads and canals, 1866 until retirement. Author: Description of the Croton Aqueduct, 1842. Railroad Property: A Treatise on the Construction and Management of Railroads, 1861.
The Question of Labour and Capital, 1877.
Born December 14, 1795