Columbia subject headings:
Thaddeus, Henry Jones, 1859-1929.
Harvard subject headings:
Artists--Ireland--Biography.
Painters--Ireland--Biography.
Thaddeus, Henry Jones, 1859-1929.
Princeton subject headings:
Painters--Ireland--Biography.
Thaddeus, Henry Jones, 1859-1929--Criticism and interpretation.
Thaddeus, Henry Jones, 1859-1929.