2013-12-19 Lewis Hine - Google 検索 https://www.google.co.jp/search?q=Lewis+Hine&espv=210&es_sm=91&source=lnms&tbm=isch&sa=X&ei=74GyUq_NHcXTkQXDy4CwDg&ved=0CAkQ_AUoAQ&biw=1318&bih=806