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: NOTORIOUS 
Clue: Using the aliases James Ryan & Harry Place, they boarded a steamer for Argentina in February 1901
butch cassidy & the sundance kid

Category: IRISH-BORN AUTHORS 
Clue: Once a drama critic in his native Dublin, he toured the U.S. as an actor's manager, but never visited Romania
bram stoker

Category: GEM LORE 
Clue: In Greek myth this gem was "created" by tears of wine from Dionysus that stained the quartz statue of a maiden

the amethyst