Leon married Jones, Jane Catherine on 4 May 1881 in Paris, Paris, Île-de-France, France. Jane (daughter of Jones, Robert Pierce and Spratley, Emma) was born on 29 October 1859 in Paris, Paris, Île-de-France, France; died on 4 Apr 1945 in France. [Group Sheet] [Family Chart]

1. Duvoisin, Robert Georges was born on 13 April 1882 in Paris, Paris, Île-de-France, France.
2. Duvoisin, Emma Julia was born on 17 May 1886 in 73, rue des Batignolles, Paris; died on 13 October 1978 in Montmorency, Val-d'Oise, Île-de-France, France.
3. Duvoisin, Marie Louise was born on 29 August 1889 in Paris, Paris, Île-de-France, France.
4. Duvoisin, Louis François was born on 20 January 1891 in 73, rue des Batignolles, Paris; died on 19 August 1967 in Montmorency, Val-d'Oise, Île-de-France, France.