The court found that the Petitioner, born out-of-wedlock, failed to establish a claim of derivative citizenship through his mother, because the subsequent marriage of his parents established his paternity by legitimation.
https://brian-d-lerner-blog.com/tag/derivative-citizenship-under-former-ina-%c2%a7321a/
https://brian-d-lerner-blog.com/tag/derivative-citizenship/
https://brian-d-lerner-blog.com/tag/derivative-citizenship-case/