However, it's important to note:
* Surnames can be adopted or changed over time. So, someone with the surname Loper might have French ancestry, but their family could have lived in other countries for generations.
* Similar surnames exist in different languages. For example, there is a Dutch surname "Loopuyt," which might have a similar origin.
Therefore, to determine the nationality associated with a specific person named Loper, you would need more information about their family history and origins.