Found the words after all:

At the grand old age of eighty-seven they took me from my coffin
They gave me a flannel nightshirt that I could travel off in
Toothless, old and wrinkled I lay there on my bed
And slowly I forgot about the time when I'd been dead

The day when I was sixty-five ended my enjoyment
I had to put on working clothes and go to my employment
Then when I was sixty I found I had a wife
That explained the children - I had wondered all my life

I kept on growing younger, growing healthier and stronger
Till at the age of twenty-one I had a wife no longer
Found myself with younger girls rolling in the clover
Till one sad day I woke to find those happy times were over

Playing football after school and sausages a-cooking
Puffing on a cigarette when the teacher wasn't looking
The trees are getting taller now, the streets are getting wider
Mother means the world to me, soon I'll be inside her

Now in here it's very dark, nothing can I see
I hear the first beats of my heart, I wonder who I'll be

(Words Sydney Carter; tune Grandfather's Clock)

No idea if this is the same story as Scott Fitzgerald's, as I don't know that one. - Susanne