 At the height of his power, Hellman served as president or director of 17 banks along the Pacific Coast and controlled $100 million in capital.On April 14, 1870 Hellman married Esther Newgass of New York.They had three children, Isaias Wolf Hellman, Jr. (1871-1920), Clara Hellman (1878-1959), and Florence Hellman (1882-1964).