Columbia subject headings:
Archivists--Ireland--Dublin--Biography.
Gilbert, John Thomas, Sir, 1829-1898.
Historians--Ireland--Dublin--Biography.
Learning and scholarship.
Librarians--Ireland--Dublin--Biography.
Harvard subject headings:
Archivists--Ireland--Biography.
Archivists--Ireland--Dublin--Biography.
Gilbert, John Thomas, Sir, 1829-1898--Contributions in learning and scholarship.
Gilbert, John Thomas, Sir, 1829-1898.
Historians--Ireland--Biography
Historians--Ireland--Dublin--Biography.
Ireland--Historiography.
Librarians--Ireland--Biography.
Librarians--Ireland--Dublin--Biography.
Princeton subject headings:
Archivists--Ireland--Dublin--Biography.
Gilbert, John Thomas, Sir, 1829-1898.
Historians--Ireland--Dublin--Biography.
Librarians--Ireland--Dublin--Biography.