Searching for birth family info ...

My name is Bob Rhea. I was born on July 7, 1962 in Bristol, TN. My birth name was Wayne Edward ? (last name unknown). I was adopted when I was approximately 8 weeks old by the Rhea family of Castlewood, VA. I know a little about my birth mother. She was 20 years old when she gave birth to me. She was the oldest child in a fairly large family. She worked as a waitress at a local restaurant in the Bristol area. My father was also supposedly employed at this restaurant. I am just trying to find out a little more information about my birth mother and father or possibly other extended family members. Thank you in advance for sharing any information which might help me on my journey.