How did British literature depict the travelling fairgrounds?

If wrong flair I apologise

I'm aware of Dickens depictions of travelling fairs but could anyone provide further examples of British literature's depictions of the travelling fairs?

I'm guessing fiction will be easier to find but I'd like non fiction too. Especially a 19th century non fiction book on travelling fairs. That would be like striking gold.

I'm writing about the travelling fairs and attempting to pinpoint the start of the "seedy" reputation they seem to have had for at least 200 years.

Any help would be greatly appreciated. Thank you.