Columbia subject headings:
Irving, H. B. (Henry Brodribb), 1870-1919.
Irving, Laurence, 1871-1914.
Harvard subject headings:
Actors--Great Britain--Biography
Dramatists, English--Great Britain--Biography.
Irving, H. B. (Henry Brodribb), 1870-1919.
Irving, Laurence, 1871-1914.
Princeton subject headings:
Irving, H. B. (Henry Brodribb), 1870-1919.
Irving, Laurence, 1871-1914.