https://en.wikipedia.org/wiki/Jockey-Club_de_Paris
WebReferences. Les célébrités de la rue, (1868): "Isabelle, la bouquetière du Jockey-Club"; Further reading. Victor Fell Yellin, Jacques Offenbach and the Paris of His Time Steven Kale, French Salons: High Society and Political Sociability from the Old Regime to the Revolution of 1848 Joseph-Antoine Roy, Histoire du Jockey Club de Paris, Paris, 1958