She wrote poems and helped Chapin write songs for the television showMake a Wish. She helped write lyrics to several of Chapin's songs, including the well-known "Cat's in the Cradle". Chapin wrote several songs about her, including "Shooting Star" and "Sandy."
Lawsuits
She was involved in several lawsuits after Chapin's death: Negligence suits related to the car accident that took his life and suits over his biography and a possible film of his life.
Charity
She accepted Chapin's Congressional Gold Medal and has worked to ensure his charities continued to function after his death. She is chairperson of the charity Long IslandCares and of The Harry Chapin Foundation.