_:B289cb47ae4b51af926ea5b7888f83386 . _:B289cb47ae4b51af926ea5b7888f83386 . _:B289cb47ae4b51af926ea5b7888f83386 "2023-05-22"^^ . _:B289cb47ae4b51af926ea5b7888f83386 . _:B289cb47ae4b51af926ea5b7888f83386 . _:B289cb47ae4b51af926ea5b7888f83386 "071600590" . _:B289cb47ae4b51af926ea5b7888f83386 . _:B289cb47ae4b51af926ea5b7888f83386 . _:B289cb47ae4b51af926ea5b7888f83386 . "1921"^^ . "W.P.G." . "W.P.G.H." . "W.P.G. Helsdingen" . "1850"^^ . "Helsdingen, Willem Pieter Gerard" . . "Helsdingen, W.P.G. (1850-1921)" . _:B289cb47ae4b51af926ea5b7888f83386 . "Helsdingen" . . .