WHEN DEATH COMES, IT WILL HAVE YOUR EYES(Verrà la morte e avrà i tuoi occhi )is of course the wonderful poem by Cesare Pavese.
Monroe and Kathleen are from Scott's last and unfinished novel THE LAST TYCOON.
I also knew a guy who knew a guy who peed beside Richard Brautigan. He was so in awe as to who was at the next urinal that he peed all over the top of his shoes.