Delannoy drew Georges Clemenceau as a skull for the first edition of Hommes du jour in January 1908, following the bloody repression of the Draveil quarry workers' movement.

"[2][3] On 26 September 1908, he and Victor Méric were condemned to a year of prison and a 3000-franc fine, a considerable sum at the time, for having drawn General Albert d'Amade, who had become "decorated" in Morocco, as a butcher with a bloodstained apron.

[3] Fifteen people, among them Octave Mirbeau, Anatole France and Lucien Descaves, testified during the trial.

[3] His colleagues supported him in a special issue of L'Assiette au beurre on 8 May entitled "Artists are people who...".

[3] The arrest caused a great chill in the cartooning world, with some no longer signing their work with their real names.