Upton Sinclair, Jr.

Upton Sinclair, Jr. (1878-1968): Pulitzer Prize-winning American author who wrote over 90 books, acquiring particular fame for his 1906 muckraking novel The Jungle. It exposed conditions in the U.S. meat packing industry, causing a public uproar that contributed in part to the passage a few months later of the 1906 Pure Food and Drug Act and the Meat Inspection Act. He ran unsuccessfully for Governor of California.