Columbia subject headings:
Castle Line (Firm)--History.
Currie, Donald, 1825-1909.
Merchant marine--Great Britain--History.
Shipping--Great Britain--History.
Union-Castle Mail Steamship Company--History.
Harvard subject headings:
Castle Line (Firm)--History.
Currie, Donald, 1825-1909
Currie, Donald, 1825-1909.
Merchant marine--Great Britain--History
Shipping--Great Britain--History
Union-Castle Mail Steamship Company--History.
Princeton subject headings:
Castle Line (Firm)--History.
Currie, Donald, 1825-1909.
Merchant marine--Great Britain--History.
Shipping--Great Britain--History.
Union-Castle Mail Steamship Company--History.