As heard in the "Mickey Rourke" https://www.youtube.com/watch?v=v_KOo2uaH3E installment of The Dark Side of Fame with Piers Morgan, broadcast October 6, 2008.
“I sat very still, as befitted a small boy among strangers, staring wide-eyed into a world I did not know. I was six years old and my father was dying.”
Source: The Lonesome Gods (1983), Ch. 1, first lines
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Louis L'Amour 65
Novelist, short story writer 1908–1988Related quotes

Not found in Twain's works, this was attributed to him in Reader's Digest (September 1939): no prior attribution known. Mark Twain’s father died when Twain was eleven years old.
Disputed
Variant: When I was a boy of fourteen, my father was so ignorant I could hardly stand to have the old man around. But when I got to be twenty-one, I was astonished at how much the old man had learned in seven years.
As quoted in the liner notes from Alone Together (1980)

" An Appeal" (1954)
From the Rising of the Sun (1974)

“I am a hundred and forty six years old and this is not my first unwinnable war.”
Source: City of Heavenly Fire

Speaking to a Hearing before the U.S. House of Representatives' Committee on Financial Services in 7/22/1998 http://fraser.stlouisfed.org/publication-issue/?id=13650
1990s