Born in Paris, he travelled to Shanghai, China, in 1911 with a group of aviation enthusiasts to promote aircraft sales.

He died in an aviation accident less than three months later, resulting in the cancellation of a planned purchase by the Chinese government.

[2] Vallon arrived in China on 10 January 1911, part of a group of aviation enthusiasts led by Monsieur Petin and also including Louis Forest.

They brought with them two aircraft, a Blériot XI monoplane and a Sommer 1910 biplane, which had been shipped overseas from France.

[2] Flights were advertised for some days, but due to engine trouble Vallon was forced to delay his exhibition.

Shortly before 4 p.m. local time, the biplane was removed from its storage shed at the Jiangwan Racecourse and Vallon entered the aircraft.

[5] As reported by The North-China Herald, "in a few seconds [it] was rotating at such enormous speed that the tornado it created literally swept several of the attendant coolies off their feet".

To end his demonstration, Vallon took the aircraft in a figure-eight pattern over the countryside, drawing the attention of people outside the venue.

[9] Several flights were held in front of General Hau of the Chinese army on 26 March 1911, intended to promote the virtues of aircraft for warfare.

Departing from Jiangwan at 6:20 p.m., he made a thirty-five-minute flight that passed over the Bund and Huangpu River before returning to the racecourse.

[11] Shortly after the conclusion of the "Last Chance Stakes Race", the announcer in Jiangwan called attention to Vallon.

The French consul-general, Marie Joseph Maurice Dejean de La Batie, delivered an address after Mass.

The first Chinese person to fly an aircraft, Feng Ru, achieved flight in the United States some time prior.