Catherine Born 7/9/57 - Looking for birth family

I was born Catherine Ruth Dorfler, July 9, 1957 in Jacksonville, Florida. My mother gave me to my adoptive parents when I was 2 1/2, in San Diego, California. My adoptive parents were Melvin Ray and Grovine Edna Campbell. They changed my name to Catherine Edna Campbell. My birth mother's name Carol. I had two older brothers and a younger sister. My birth father was Bruce Dorfler. I would like to meet any of my relatives.