Use the free search tool at: https://familysearch.org/search and plug in the details that you have.
The link below shows several Ray Pierces b. AR, each with several sisters. Maybe you will recognize their names, and be able to determine which is the correct one.
https://familysearch.org/search/record/results?count=20&query=%2Bgivenname%3Aray~%20%2Bsurname%3Apierce~%20%2Bbirth_place%3Aar~%20%2Bbirth_year%3A1900-1909~%20%2Bfather_surname%3Apierce~