You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: LEGENDS 
Clue: The "Literature Lover's Book of Lists" says this engineer "blew his train whistle in a special way"
casey jones

Category: LOW TECH 
Clue: Stone item seen here from the Neolithic, or "New Stone" Age
arrowhead

Category: CUBA 
Clue: This Pulitzer & Nobel prize-winning novelist's home in pre-Castro Cuba was called "Finca Vigia"

ernest hemingway