Columbia subject headings:
Harris, Thomas Lake, 1823-1906.
Oliphant, Laurence, 1829-1888.
Harvard subject headings:
Harris, Thomas Lake, 1823-1906.
Oliphant, Laurence, 1829-1888.
Princeton subject headings:
Harris, Thomas Lake, 1823-1906.
Oliphant, Laurence, 1829-1888.