You'll read that Jack and his mom, Gabrielle, couldn't afford a monument when Nin died in 1964. Also, that Jack didn't make it to the funeral, locking himself in his bathroom instead.
Death and related matters sure freaked Jack out.
The article says Jack wrote, "Get older and you get more mystified. Youth has a way of sloughing off death and graves and even makes purple armpit poetry about it, as I did. But in real life, there's a red-neoned funeral parlor at the end of your street, and gloom hits you...."
~Alfred, Lord Tennyson
In Memoriam A.H.H.