Ferdinand Jean Marie Valentin Duviard (11 June 1889 – 2 February 1965) was a French high school teacher in Cahors, a writer and novelist.
Duviard edited the magazine Juneco ("Youth") during 1909 and 1910, and he was a member of Lingva Komitato, the guiding committee for the Esperanto language, until shortly after the end of World War I.
Ferdinand, Elisabeth and their three children lived until November 1915 on rue Molière in La Roche-sur-Yon, before settling in the Paris region of Coulommiers.
Duvard's fourth child, François Eugène Duviard-Marsan (1926–2007) was later to become Governor of Rotary International and received a knighthood, the Ordre National du Mérite.
"[1] Under the headline "A success of Esperanto," the 9 August 1915, issue of the newspaper La Petite Gironde highlighted the efforts of Esperantists concerning the search for the missing and the results obtained.
[2] He launched a productive career of novel-writing and literary criticism with a book on his maternal grandfather, the novelist Ferdinand Fabre, whose description of religious life Pierre Ouvrard compares favourably with that of Émile Zola.