Katie,
What a pleasant surprise to find your note in my inbox here. I had almost given up hope of finding anyone who was in search like I am. I can vaguely remember a conversation between my mother and father about his having another daughter. Unfortunately, my mother kept sooo many things "quiet" in our house and we were not allowed to discuss much of anything, let alone ask questions. I do have a biological younger sister named Lynette who resides somewhere in Florida. I would LOVE to 'talk' with you more. Perhaps you would be up to emails? If so, my email is: madic04 (at sign) gmail.com. Just put JUAN in the subject line so I don't count it out as spam.
I don't have much info, but regardless, perhaps this is a start. Who is Louise? The ironic thing? I live in North Carolina as well! I live in Kannapolis which is just north of Charlotte. One of my son's lives in Raleigh.
I hope to hear from you.
Regards,
Leslie