Columbia subject headings:
Harvard subject headings:
Aboriginal Australians--Australia--Groote Eylandt (N.T.)--History.
Australia--Biography.
Gray, Frederick Harold, 1899-
Umbakumba Mission (N.T.)--History.
Princeton subject headings:
Aboriginal Australians--Australia--Groote Eylandt (N.T.)--History.
Australia--Biography.
Gray, Frederick Harold, 1899-
Umbakumba Mission (N.T.)--History.