_:B7a8d018a648c9e0337d015e8739d7f35 . "Ketcham" . . . . "Ketcham, Ralph Louis (1927-)" . "Ralph Louis" . "Ralph Louis Ketcham" . . "1927"^^ . _:B7a8d018a648c9e0337d015e8739d7f35 . _:B7a8d018a648c9e0337d015e8739d7f35 . _:B7a8d018a648c9e0337d015e8739d7f35 "2023-05-20"^^ . _:B7a8d018a648c9e0337d015e8739d7f35 . _:B7a8d018a648c9e0337d015e8739d7f35 . _:B7a8d018a648c9e0337d015e8739d7f35 "070821968" . _:B7a8d018a648c9e0337d015e8739d7f35 . _:B7a8d018a648c9e0337d015e8739d7f35 . _:B7a8d018a648c9e0337d015e8739d7f35 .