"Anti-Slavery Baptist minister" . . . "Cyrus Pitt Grosvenor"@en . "1879Z"^^ . . . . . . "Grosvenor, Cyrus Pitt"@en . "Cyrus Pitt Grosvenor (October 18, 1792 \u2013 February 11, 1879) was an American Baptist minister known for his anti-slavery views. In his retirement he worked on a famous mathematics problem and took out a patent to prevent lamp explosions."@en . . "1879-02-11Z"^^ . "1792-10-18Z"^^ . "1792Z"^^ .