Memory MuckrakersVersión en línea Memory Game por Jefferson County ESC Term used to describe the investigative journalists of the early 1900s who exposed many problems and issues in urban America. Upton Sinclair Muckrakers Jacob Riis 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 he published his most well-known work “The Jungle,” Ida Tarbell