David Schmidt are you out there?

Im looking for a david schmidt. All we know is he has a twin sister and my mom is his older sister. They were put up for adoption. Their mom died giving birth to David and Diane. My mom was born at Fort Cambell, kentucky. On a army base. They were born around the 1950's. We were told that their dad got remarried and his new wife didnt want him to keep them so he gave them to a agency. If anyone knows them please contact me. We dont know if david or diane stayed together or got adopted by different parents. Thank you. Kristen