Columbia subject headings:
Casement, Roger, 1864-1916.
Germany--Foreign relations--Ireland.
Ireland--Foreign relations--Germany.
Harvard subject headings:
Casement, Roger, 1864-1916.
Germany--Foreign relations--Ireland.
Ireland--Foreign relations--Germany.
Princeton subject headings:
Casement, Roger, 1864-1916.
Germany--Foreign relations--Ireland.
Ireland--Foreign relations--Germany.