Clara Clemens, daughter of Mark Twain, seated at a piano in 1908.
Bain News Service
U.S. Library of Congress <a rel="nofollow" class="external free" href="http://loc.gov/pictures/item/ggb2004003749/resource/ggbain.03749/">http://loc.gov/pictures/item/ggb2004003749/resource/ggbain.03749/</a>