Columbia subject headings:
Child labor--United States--History--Pictorial works--Catalogs.
Child labor--United States--History.
Hine, Lewis Wickes, 1874-1940--Photograph collections--Catalogs.
Hine, Lewis Wickes, 1874-1940.
Milwaukee Art Museum--Catalogs.
National Child Labor Committee (U.S.)--History.
Photograph collections--Wisconsin--Milwaukee--Catalogs.
Harvard subject headings:
Child labor--United States--History--Pictorial works--Catalogs.
Child labor--United States--History.
Hine, Lewis Wickes, 1874-1940--Catalogs.
Hine, Lewis Wickes, 1874-1940--Photograph collections--Catalogs.
Hine, Lewis Wickes, 1874-1940.
Milwaukee Art Museum--Catalogs.
National Child Labor Committee (U.S.)--History.
Photograph collections--Wisconsin--Milwaukee--Catalogs.
Princeton subject headings:
Child labor--United States--History--Pictorial works--Catalogs.
Child labor--United States--History.
Hine, Lewis Wickes, 1874-1940--Photograph collections--Catalogs.
Hine, Lewis Wickes, 1874-1940.
Milwaukee Art Museum--Catalogs.
National Child Labor Committee (U.S.)--History.
Photograph collections--Wisconsin--Milwaukee--Catalogs.