Memory MuckrakersVersion en ligne Memory Game par Jefferson County ESC Ida Tarbell Jacob Riis Upton Sinclair Muckrakers first to write about the conditions of the urban poor, and eventually photographing them she exposed the business practices of the head of industrial mogul John D. Rockefeller Term used to describe the investigative journalists of the early 1900s who exposed many problems and issues in urban America. he published his most well-known work “The Jungle,”