[1] Yvonne was the daughter of historian and political activist Jean Baby [fr] and Ruta Assia, and the stepdaughter of writer and film historian Georges Sadoul.
[2] A journalist and writer, Baby directed the cultural service of the newspaper Le Monde from 1970 to 1985, after which she became a film critic.
[3] In 1975, she traveled to Copenhagen to interview Paul Pavlowitch on the mystery of Émile Ajar.
She was vice-president of the jury of the 1983 Cannes Film Festival.
Yvonne Baby died on 3 August 2022, at the age of 90.