A Josiah Nottage constructed the Charles River Bridge between Boston and Cambridge in the 1790s. He also built in 1795 a bridge in Newark, NJ, across the Passaic River. He was considered "the country's premier bridge builder." (source: Google books)
Apparently he knew John Hancock:
Hancock, John, 1732-1793. A.D.s.; Boston, 15 Feb 1785. 1s.(1p.)
Order for rations for Josias Nottage.
Acquisition Information: *57JM-34(6) Bequest of Lee M. Friedman, 1957.
(Houghton Library, Harvard College Library, Cambridge, MA)
"Josias of Katherine Nottage" was baptized and/or accepted into membership at the Church in Brattle Square, Boston, on 13 Feb 1757. (See notes for Katherine)