BACHE, U.S. family of investment bankers and art collectors. BACHE, JULES SEMON (1862–1944) was born in New York. After some years with his father's trading firm he became a cashier in 1880 for Leopold Cahn and Co., investment bankers. Twelve years later he became head of the firm, which he renamed J.S. Bache and Co. Under his leadership the company became prominent in investment banking and securities trading, with interests in railroads, mining, manufacturing, trading, and insurance. Bache's philanthropy included donations to hospitals and scientific research, civic institutions, and the arts. He gave his outstanding collection of paintings, sculptures, tapestries, enamels, furniture, and porcelains to the State of New York for the Metropolitan Museum of Art.