My earliest memory

A little one runs by
I would have two of them
& one would be six years old
& one would be two
I think about them from time to time

My earliest memory
isa flight of stairs
I was three years old
And one would be six years old
and one would be two

My father says I fell down a flight of stairs
at about that time
I was three years old
my earliest memory is a flight of stairs

I would have a baby six years old
& a three year old baby
& I'm glad I don't