[2] Best known for his window designs in Germany, Israel, Japan, the West Indies, and the United States, his paintings and sculptures have also been exhibited throughout North America.
At age six, his father, a manager of a champagne company, died and Duval and his mother moved to Mutzig to live with his grandmother and two uncles.
[7] 1957: In 1957 Duval entered and won the international competition for the windows of the Vatican Pavilion at the 1964 New York World’s Fair, now in St. Mary's Church (Groton, Connecticut).
Duval also created stained glass sculptures for the chapel at Holy Cross High School (Waterbury, Connecticut) in 1965 and for the Altman and Wolf Equitable Building (Baltimore, Maryland) in 1968.
[3] Encouraged by artists Willem de Kooning and artist-stained glass designer Adolph Gottlieb, both friends of his wife, writer Elga Liverman Duval, he was part of the 1950s New York art scene.
[12] During this period he designed liturgical windows for the historic monument B’nai Israel (Pittsburgh) and Christ the King Lutheran Church (North Olmstead, Ohio).
[9] Important commissions within the region include the Champlain Valley Physicians Hospital Chapel and the Fine Arts Building, State University of New York (Plattsburgh).
During this time solo exhibitions of his paintings and sculpture were held in 2012 at gallery Beaux-arts des Amériques (Montreal)[2] and at the Plattsburgh State Art Museum in 1213.
[9] As a stained-glass designer, Duval completed over 500 commissions in France, Germany, Israel, Japan, the West Indies, and the United States.
[15] In 2012 he was interviewed for the show Spotlight by Paul Larson of Mountain Lake PBS at his Montreal solo exhibition held at Beaux-arts des Amériques.