[citation needed] He was a friend of Roger de La Fresnaye,[2] and took care of him until his death.
La Fresnaye made several portraits of Gampert, one of them in the collection of the Musée National d'Art Moderne in Paris.
Gampert's work was influenced by La Fresnaye's monumental style stemming from synthetic cubism.
[citation needed] From 1925 till 1928 Emile Chambon worked with Gampert, assisting him in his atelier and with decorating the church of Corsier.
[2] From 1927, Gampert and Alexandre Cingria lead the École des Pâquis movement, which included artists such as Emilio-Maria Beretta, Albert Chavaz and Paul Monnier.