Columbia subject headings:
African Americans--Biography.
Harper family.
Harper, Katherine, 1913-1988.
Harper, W. Warren (Walter Warren), 1915-
Johnson family.
Harvard subject headings:
African Americans--Biography
Harper family.
Harper, Katherine Johnson, 1913-1988.
Harper, W. Warren, 1915-
Johnson family.
Princeton subject headings:
African Americans--Biography.
Harper family.
Harper, Katherine, 1913-1988.
Harper, W. Warren, 1915-
Johnson family.