. "Walter Beverly Pearson (December 2, 1861 - May 19, 1917) was an American inventor, industrialist and president of the Standard Screw Company. It became known as Stanadyne Automotive Corporation.He is believed to have been an unacknowledged great-grandson of President Thomas Jefferson and his slave Sally Hemings, as he was a descendant of their son Eston Hemings."@en . "1861-12-02Z"^^ . "1861Z"^^ . . . "American businessman" . "1917-05-19Z"^^ . . "1917Z"^^ . . "Walter Beverly Pearson"@en . . "Pearson, Walter Beverly"@en .