Columbia subject headings:
Cockerell, Sydney Carlyle, Sir, 1867-1962--Correspondence.
Europe--Description and travel.
Hassall, Joan--Correspondence.
Wood-engravers--England--Correspondence.
Harvard subject headings:
Cockerell, Sydney Carlyle, Sir, 1867-1962.
Europe--Description and travel.
Hassall, Joan--Correspondence.
Wood-engravers--England--Correspondence.
Princeton subject headings:
Cockerell, Sydney Carlyle, Sir, 1867-1962.
Europe--Description and travel.
Hassall, Joan--Correspondence.