Columbia subject headings:
Le Gray, Gustave, 1820-1884--Exhibitions.
Photographers--France--Biography.
Photography--France--History--19th century.
Harvard subject headings:
Le Gray, Gustave, 1820-1884.
Photographers--France--Biography
Photography--France--History--19th century.
Princeton subject headings:
Le Gray, Gustave, 1820-1884.
Photographers--France--Biography.
Photography--France--History--19th century.