Simplify the following text for a Grade 10 native English-speaking person.
Original: After Robinson 's retirement from baseball , his wife , Rachel Robinson , pursued a career in academic nursing â `` she became an assistant professor at the Yale School of Nursing and director of nursing at the Connecticut Mental Health Center .
Simplified: After Robinson 's retirement from baseball , his wife , Rachel Robinson , went for a career in academic nursing . She became an assistant professor at the Yale School of Nursing and director of nursing at the Connecticut Mental Health Center .