Their youngest son, Roy de Maistre (1894–1968), born after de Mestre had retired from training, was a successful artist who lived the later part of his life in London where he formed a friendship with novelist Patrick White.
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De Mestre won the first two Melbourne Cups with Archer in 1861 and 1862, and later trained a further three winners: Tim Whiffler (1867); Chester (1877); and Calamia (1878).
Saint-Étienne | Étienne-Jules Marey | George-Étienne Cartier | Étienne Geoffroy Saint-Hilaire | Jean-Étienne Dominique Esquirol | Saint-Étienne-le-Laus | Saint-Étienne-du-Rouvray | Etienne Decroux | Étienne Serres | Étienne Maurice Falconet | Étienne Gilson | Étienne François, duc de Choiseul | Saint-Étienne-du-Mont | Saint-Étienne-de-Lugdarès | Saint-Étienne-de-Baïgorry | Saint-Etienne | Jean-Étienne Guettard | Jean Étienne Championnet | Giovanni Baleison, ''Cycle on the life of Saint Sebastian'', fresco, detail of main altar, St. Sebastian Church, Saint-Étienne-de-Tinée | François Étienne de Kellermann | Étienne Mulsant | Étienne Marcel | Étienne-Louis Malus | Étienne Louis Geoffroy | Étienne-Louis Boullée | Étienne Lenoir | Etienne Laspeyres | Étienne-Jean Delécluze | Étienne Guibourg | Étienne Dupérac |
Mary Ann de Mestre née Black (1801–1861) was the wife of Prosper de Mestre (1789–1844) a prominent Sydney businessman in the early 19th century; and the mother of Etienne Livingstone de Mestre (1832–1916) the trainer of the racehorse Archer who won the first and second Melbourne Cups in 1861 and 1862, and the foremost Australian horse trainer of his era.