Dear Ms. Gonzalez,
Thank you for posting your request on History Hub!
We suggest reviewing the Texas newspapers in Chronicling America for ads or articles about the circus coming to Oakwood. We also suggest that you contact various historical societies around Oakwood that may have circus items in their collections.
On a website of the Texas Co-op Power, we located several articles about circuses.
We hope this is helpful. Best of luck with your research!