* The poem does not exist: There's no evidence of such a poem being attributed to Tom Robinson.
* You may be thinking of another author: Double-check the name of the author or the title of the poem.
* It's a fictional poem: The poem might be a part of a fictional story or play, in which case it wouldn't be a real poem written by a real person.
To find more information, please provide:
* The full name of the author you are referring to: Is it Tom Robinson or someone else?
* Any additional details about the poem: Do you remember any lines or the context in which you encountered the poem?
With more information, I can help you find the poem you're looking for.