. . "1875-06-26"^^ . "H.T." . "graa025" . . _:B82f620567e3d97465c19245096b8db7c . "Graaf, H.T. de (1875-1930)" . "Kollum" . . "H.T. de Graaf" . "de Graaf" . "1930-12-02"^^ . "H.T. de Graaf" . _:B82f620567e3d97465c19245096b8db7c . _:B82f620567e3d97465c19245096b8db7c "2021-02-08"^^ . _:B82f620567e3d97465c19245096b8db7c . _:B82f620567e3d97465c19245096b8db7c . _:B82f620567e3d97465c19245096b8db7c . _:B82f620567e3d97465c19245096b8db7c . _:B82f620567e3d97465c19245096b8db7c .