Columbia subject headings:
Astrophysicists--United States--Biography.
Astrophysics--United States--History.
Keeler, James Edward, 1857-1900.
Harvard subject headings:
Astrophysicists--United States--Biography.
Astrophysics--United States--History.
Keeler, James Edward, 1857-1900.
Princeton subject headings:
Astrophysicists--United States--Biography.
Astrophysics--United States--History.
Keeler, James Edward, 1857-1900.