Columbia subject headings:
Clemens, Susy, 1872-1896.
Twain, Mark, 1835-1910.
Harvard subject headings:
Authors, American--19th century--Biography--Family.
Authors, American--19th century--Family relationships.
Clemens, Susy, 1872-1896--Family.
Fathers and daughters--United States--Biography.
Twain, Mark, 1835-1910--Biography--Family.
Twain, Mark, 1835-1910--Family.
Princeton subject headings:
Authors, American--19th century--Family relationships.
Clemens, Susy, 1872-1896--Family.
Twain, Mark, 1835-1910--Family.