Columbia subject headings:
Harvard subject headings:
Expatriate motion picture producers and directors--Irland--Biography.
Motion picture producers and directors--United States--Biography
Motion pictures--Ireland--History.
Olcott, Sidney, 1873-1949.
Princeton subject headings:
Expatriate motion picture producers and directors--Irland--Biography.
Motion picture producers and directors--United States--Biography.
Motion pictures--Ireland--History.
Olcott, Sidney, 1873-1949.