Columbia subject headings:
Eugene, Frank, 1865-1936--Exhibitions.
Photographers--Germany--Biography.
Photography, Artistic--History--20th century.
Harvard subject headings:
Eugene, Frank, 1865-1936--Exhibitions.
Photographers--United States--Biography
Photography of art--Exhibitions.
Portrait photography--Exhibitions
Princeton subject headings:
Eugene, Frank, 1865-1936--Exhibitions.
Photographers--Germany--Biography.
Photographers--United States--Biography.