Many many years ago when I was twenty three
I was married to a widow who was pretty as can be
This widow had a grownup daughter who had hair of red
My father fell in love with her and soon they too were wed
This made my dad my son in law and changed my very life
For my daughter was my mother cause she was my fathers wife

To complicate the matter even though it brought me joy
I soon became the father of a bouncing baby boy
My little baby then became a brother in law to dad
And so became my uncle though it made me very sad
If he was my uncle then it also made him brother
to the widows grown up daughter who is of course my step mother

I'm my own grandpa
I'm my own grandpa
It's a funny I know
But it really is so
I'm my own grandpa

My fathers wife then had a son who kept them on the run
And he became my grandchild cause he was my daughters son
My wife is now my mothers mother and it make me blue
Because although she is my wife she's my grandmother too

If my wife is my grandmother then I am her grandchild
And ever time I think of it nearly drives me wild
This has got to be the strangest thing I ever saw
As husband of my grandmother I am my own grandpa

I'm my own grandpa
I'm my own grandpa
It's a funny I know
But it really is so
I'm my own grandpa