Columbia subject headings:
Caldecott, Randolph, 1846-1886.
Illustrators--Great Britain--Correspondence.
Harvard subject headings:
Caldecott, Randolph, 1846-1886.
Illustrators--Great Britain--Correspondence.
Princeton subject headings:
Caldecott, Randolph, 1846-1886.
Illustrators--Great Britain--Correspondence.