In 1902, Victor married the harpist, Caroline Luigini, daughter of the composer and conductor, Alexandre Luigini. They had one son - Jean Tardieu, who became a writer.
In 1914, Victor volunteered for service in the First World War and worked as a medical orderly in a field hospital near Dunkirk; during which time he continued to sketch and paint.
In 1915, Victor painted some of the scenes at the Hospital in the Oatfield, organised by British poet and nurse Millicent, Duchess of Sutherland in France in the early days of WW1.
Victor's paintings of the Hospital in the Oatfield are now owned by the Florence Nightingale Museum in London.
In 1925, Victor and his friend, the painter Nguyễn Nam Sơn, created the École des Beaux-Arts de l'Indochine (now the Vietnam University of Fine Arts), where he served as Director until 1936. Victor died in Hanoi, Vietnam on 12th June 1937.
Sources:
https://fr.wikipedia.org/wiki/Victor_Tardieu
https://www.florence-nightingale.co.uk/the-hospital-in-the-oatfield/
https://femalewarpoets.blogspot.com/2018/03/a-book-about-ww1-poet-millicent-duchess.html
https://femalewarpoets.blogspot.com/2018/03/a-book-about-ww1-poet-millicent-duchess.html