Columbia subject headings:
Architecture--Northern Ireland--Londonderry (County)
Buildings--Northern Ireland--Londonderry (County)
Worshipful Company of Fishmongers (London, England)--Buildings.
Harvard subject headings:
Architecture--Ireland--Ulster.
Architecture--Northern Ireland--Londonderry (County)
Buildings--Northern Ireland--Ballykelly.
Fishmongers' Company (Northern Ireland)
Historic buildings--Northern Ireland--Londonderry (County)
Londonderry (Northern Ireland : County)--History.
Worshipful Company of Fishmongers (London, England)--History.
Princeton subject headings:
Architecture--Northern Ireland--Londonderry (County).
Fishmongers' Company.
Londonderry (Northern Ireland : County)--Buildings.