Elaine Collins - an African American adult model, she also posed for Playboy. She was modeling from 1973 to 1983.
Random pics:
http://www.bigbreastarchive.com/alphabetical/georgiajackson/georgiajackson.html
http://boobseum.com/category/GeorgiaJackson/
http://retroboobs.com/georgiajackson/index.htm