Fame and the dead librarian

I found some surrealists, authors, alchemists and inventors to include in this distingushed list of [predominantly] dead, famous people who once worked as librarians :

• Georges Bataille (Surrealist author)



• Jorge Luis Borges (Argentinian novelist)



• Laura Bush (ex-US President's wife...)

• Lewis Carroll (novelist)
  
  
• John Dee (Renaissance magician/alchemist)
  
  
• Marcel Duchamp (influential artist and DADAIST)
  
  
• Benjamin Franklin (American scientist, inventor, statesman, and philosopher)
  
  
• Hypatia of Alexandria (Ancient Greek mathematician)
  
  
• Lao Tsu (Chinese philosopher and reputed founder of Taoism - Court librarian)
  
  
• Marcel Proust (French novelist, essayist and critic)

• Phillip Pullman (fantasy author)

and the notorious Casanova, infamous for many reasons, was also a librarian...