[2] Etienne Gasqueton was born in Roubaix, as the second of five sons from the marriage formed by Hélène Berchon (1862–1932) and Georges Capbern-Gasqueton (1857–1922),[3] a businessman involved in the wine industry and the proprietor of Château Capbern-Gasqueton and Château Calon-Ségur in Saint-Estèphe, Gironde, having bought the latter in 1894, with the help of Charles Hanappier, a négociant from Orléans and also the grandfather of his wife; the 37-hectare vineyard of Calon-Ségur cost them over half a million francs.

[3] In 1907, a group of sportsmen, including the five Capbern-Gasqueton brothers, gathered in Bordeux to found the Vie au Grand Air du Médoc, a multi-sports club which initially only had three sections, football, field hockey, and cricket.

Etienne played in the 1913 final on 18 May, starting as a forward alongside his brother Edouard (midfield), and it was one of his crosses that resulted in the opening goal of the match, but his team eventually lost 1–2 to CA Paris.

[6][7] On 11 April 1920, Etienne started in the semifinals of the 1919–20 Coupe de France, but despite doing so alongside his younger brothers Edouard and Lionel, Médoc lost 1–2 to the eventual champions CA Paris.

[14] In November 1924, the start of autumn marked the return of field hockey, and the local press showed enthusiasm with the "resurrection of the women's section of the VGA Médoc", reporting about a little training at Jard, and stating that "before we can judge the general appearance of the team, we must await the eagerly awaited returns of Mr. Henri and Etienne Gasqueton, Stella Hutchison and the remarkable goalkeeper Violette Nash".