. "American shipbuilder" . "1846Z"^^ . "1778Z"^^ . "1778-11-23Z"^^ . . . "Humphreys, Samuel"@en . "Samuel Humphreys (23 November 1778 \u2013 16 August 1846) was a noted American naval architect and shipbuilder in the early 19th century. He served the United States Navy as the Chief Constructor for the Navy from 1826 to 1846."@en . . "Samuel Humphreys"@en . . . "1846-08-16Z"^^ . .