Possible Clues:

• Sinclair who wrote "The Jungle"
• Model Kate married to Justin Verlander
• 'Oil!' author Sinclair
• ''The Jungle'' author Sinclair
• Kate on the cover of Vanity Fair's 100th anniversary issue
• Pulitzer author Sinclair
• "Dragon's Teeth" author Sinclair
• Sinclair who wrote 'The Jungle'
• Muckraker's first name
• Baltimore neighborhood that includes Marble Hill