John Jacks (also known as John Jacques) arrived in Adelaide, South Australia in 1852 from Middlesex, England, aboard the Steadfast, with his first wife, Elizabeth, a son and two daughters. He listed his trade as either 'shoemaker' or 'bootmaker'.
- Elizabeth Jacks (1826-?)
- Jane Pamphilion (?-?) - Married 2 December 1850 at Holy Trinity Church, Adelaide, South Australia.
- South Australian Births 1842-1906
- South Australian Deaths 1842-1915
- Biographical Index of South Australians (BISA)