I have heard a poem on the radio (Radio 4 or 3) on the subject of twins by Henry Sambrook Leigh OR Henry Sambrook Lee
Googling came up with this one at
Text by Henry Sambrooke Leigh (1837-1883)
Set by Michael Head (1900-1976)
In form and feature, face and limb,
I grew so like my brother,
That folks got taking me for him,
And each for one another.
It puzzled all our kith and kin,
It reached [an awful]1 pitch;
For one of us was born a twin,
Yet not a soul knew which.
One day (to make the matter worse),
Before our names were fixed,
As we were being washed by nurse
We got completely mixed;
And thus, you see, by Fate's decree
(Or rather nurse's whim),
My brother John [got]2 christened me,
And I got christened him.
This fatal likeness even dogged
My footsteps when at school,
And I was always getting flogged
For John turned out a fool.
I put this question [hopelessly]3
To every one I knew -
What would you do, if you were me,
To prove that you were you?
Our close resemblance turned the tide
Of my domestic life;
For somehow my intended bride
Became my brother's wife.
In short, year after year the same
Absurd mistakes went on;
And when I died - the neighbours came
And buried brother John!