Linda Susan Agar, who goes by Susan Agar, is Temple's eldest daughter (via Juke Bugs). She is the only daughter shared between Temple and her ex-husband, actor John Agar. She was born in 1948 and shared a close relationship with her famous mother.

Agar tried her hand at acting in her youth, credited on IMDb with two roles in her mother's show, "The Shirley Temple Storybook." It seems that she opted out of a life in Hollywood and kept a low profile.

Agar had a daughter named Teresa Caltabiano who Temple shared a close relationship with (via Fabiosa). Caltabiano had a daughter of her own, Temple's great-granddaughter, who she got to meet in her lifetime.

While Agar chose to live her life outside of the spotlight, she never backed down from an opportunity to share her sweet relationship with Temple. She would gush about how devoted and generous Temple was to her family, as well as how much she loved to help her mother with the interior design of her childhood homes (via The Things).