Dr. Francine "Penny" Patterson is an American researcher who taught a modified form of American Sign Language, which she calls "Gorilla Sign Language", or GSL, to a gorilla named Koko. Patterson is the second oldest of seven children and daughter of C.H. Patterson, a professor of psychology, and Frances Spano Patterson. She and her family moved to Edina, Minnesota when she was young, and then to Urbana, Illinois. Her mother died of cancer when Patterson was a freshman in college and the youngest of her siblings was just five years old. This triggered her interest in developmental psychology, a theme which pervaded much of her later work. Patterson earned her bachelor's degree in psychology at the University of Illinois at Urbana-Champaign in 1970. She attained her Ph.D. in 1979 from Stanford University, with her dissertation Linguistic Capabilities of a Lowland Gorilla, on teaching sign language to Koko and Michael, another Lowland Gorilla, who died in 2000. Currently, Patterson serves as the President and Research Director of The Gorilla Foundation. The foundation was founded with her longtime research colleague Dr. Ronald Cohn in 1978 using monetary support from a Rolex Award. 

February 13th, 1947 in Chicago (Age 77)