Answer :
Upton Sinclair is famous for writing the book The Jungle,which exploits the horrible conditions of immigrants in industrialized cities during the early 1900's.
Lincoln Steffens is famous for being a muckracker,meaning he wrote for newspapers during the Progressive Era. Steffens also worked with Ida Tarbell,in revealing corruption(for example,Boss Tweed's crimes).
Lincoln Steffens is famous for being a muckracker,meaning he wrote for newspapers during the Progressive Era. Steffens also worked with Ida Tarbell,in revealing corruption(for example,Boss Tweed's crimes).