Keyes Metcalf

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Keyes DeWitt Metcalf (April 13, 1889 – November 3, 1983) was an American librarian. He has been identified as one of the 100 most important leaders in librarianship by the journal ''American Libraries''. In a career spanning over 75 years, he worked in various roles at the New York Public Library and served as the director of the Harvard University library system. He was known for his expertise in planning and designing research libraries.