_:B2c15d0abd7b31bc43922fd80fbf0697c . "Alvan Graham" . "Alvan Graham Clark" . . . "1897"^^ . . "Clark, Alvan Graham (1832-1897)" . "1832"^^ . "Clark" . . _:B2c15d0abd7b31bc43922fd80fbf0697c . _:B2c15d0abd7b31bc43922fd80fbf0697c . _:B2c15d0abd7b31bc43922fd80fbf0697c "2023-05-22"^^ . _:B2c15d0abd7b31bc43922fd80fbf0697c . _:B2c15d0abd7b31bc43922fd80fbf0697c . _:B2c15d0abd7b31bc43922fd80fbf0697c "070400997" . _:B2c15d0abd7b31bc43922fd80fbf0697c . _:B2c15d0abd7b31bc43922fd80fbf0697c . _:B2c15d0abd7b31bc43922fd80fbf0697c .