With Melvina Jacobi:
Daughter, Rose Hammerstein (1881-1942);
Daughter, Stella Hammerstein (1882-1975).
With Rose Blau:
Son, Henry "Harry" Hammerstein (1869-1914);
Son, William Hammerstein II (1872-1914);
Son, Arthur Hammerstein (1873-1955);
Son, Abraham Lincoln Hammerstein (1875-1914).