Columbia subject headings:
Cassatt, Mary, 1844-1926.
Dancers--United States--Biography.
Duncan, Isadora, 1877-1927.
Painters--United States--Biography.
Harvard subject headings:
Cassatt, Mary, 1844-1926
Dancers--United States--Biography
Duncan, Isadora, 1877-1927
Painters--United States--Biography.
Princeton subject headings:
Cassatt, Mary, 1844-1926.
Dancers--United States--Biography.
Duncan, Isadora, 1877-1927.
Painters--United States--Biography.