When William Street poetry was written?

There's no single poem or collection of poems known as "William Street Poetry". It's likely you're thinking of a specific poet or a collection of poems associated with a specific location or period.

To help me find the answer you're looking for, could you please provide more context?

For example:

* Is there a specific poet named William Street?

* Do you remember any lines from the poem or poems you're thinking of?

* Was there a specific location or event connected to this poetry?

* Do you know the approximate year or era when this poetry was written?

With more information, I can help you pinpoint the exact poetry you're searching for.