Columbia subject headings:
Librarians--Biography.
Metcalf, Keyes D. (Keyes DeWitt), 1889-1983.
Harvard subject headings:
Harvard University--Biography.
Harvard University--Libraries--Employees--Biography.
Librarians--Biography.
Librarians--United States--Biography
Metcalf, Keyes D. (Keyes DeWitt), 1889-1983
Princeton subject headings: