See also

• Jacob ISAACS's parents: Abraham Benjamin ISAACS (1825-1902) and Frances LEVI (1827-1894)
• Jacob ISAACS's siblings: Benjamin ISAACS (1846-1852), Reuben ISAACS (1848-1877), Lewis ISAACS (1850-1918), Isaac ISAACS (1852-1927), Solomon ISAACS (1857-1858), George Reuben ISAACS (1858-1941), Henry (Harry) ISAACS (1861-1940), Sarah ISAACS (1863-1927), Phillip ISAACS (1864-1942), Rebecca ISAACS (1866-1930) and Rachel Victoria ISAACS (1869-1936)