 In the years just prior to his death, Jouvenal was employed by the Architect of the Capitol, and designed sculpture and architectural details for both the Capitol building and the then-unbuilt State, War, and Navy Building.Jacques Jouvenal died of unspecified causes on the morning of March 8, 1905, at his home.He was buried in Rock Creek Cemetery in Washington, D.C. Jouvenal was survived by his wife, two sons (Rudolph and Adolph), and four daughters (Caroline, Clara, Emma, and Wilhelmina).