Robert Cousins was born on 13 June 1823 in Melton, Suffolk, England (House of Industry as the first child of Robert Fairweather and Mary Couzins). He died on 29 November 1892 in Dongara, Western Australia, Australia. When he was 30, he married Harriett Mary Bishop,daughter of Robert Bishop and Hannah Bantem, on 5 December 1853 in Dongara, Western Australia, Australia.

His cause of death was Cancer.. He was employed as a Farm labourer, Carpenter, Builder, Coffin Maker, Road works contractor, Farmer. He was affiliated with the CofE religion. He was baptized on 15 June 1823 in Kettleburgh, Suffolk, England. Crime: 1850 (Convicted Bury St Edmunds - night poaching & wounding - 15yrs) Convict Number: 1851 (#270) Immigration: Arr.: 7 May 1851 (Per "Mermaid" to Western Australia, Australia) Ticket of Leave: 23 October 1852 Pardon: 29 January 1859 He was buried in 1892 in Cemetery, Dongara, Western Australia, Australia (Methodist). Death Record: 1892 (#865)

Robert Cousins and Harriett Mary Bishop had the following children:

1. George Cousins was born on 18 September 1854 in Perth, Western Australia, Australia. He died between 2–21 January 1906 in Irwin, Western Australia, Australia. He married Frances Anna "Hanna" Pell on 29 March 1876 in Dongara, Western Australia, Australia. He married Mary Ann Bishop on 25 October 1905 in Irwin, Western Australia, Australia.
2. Henry William Cousins was born on 18 February 1858 in Perth, Western Australia, Australia. He died on 27 December 1935 in Perth, Western Australia, Australia. He married Clara Elizabeth Cook King on 29 May 1882 in Greenough, Western Australia, Australia (St James Church).
3. Unknown Cousins was born in 1860 in Perth, Western Australia, Australia. She died in 1860 in Perth, Western Australia, Australia.
4. Unknown Cousins was born in 1861 in Perth, Western Australia, Australia. He died in 1861 in Perth, Western Australia, Australia.
5. Harriet Maria Cousins was born on 12 April 1863 in Perth, Western Australia, Australia. She died on 5 November 1949 in Dongara, Western Australia, Australia. She married Peter Francis Healy in 1883 in Irwin, Western Australia, Australia.
6. David Cousins was born in 1865 in Geraldton, Western Australia, Australia. He died in 1867 in Geraldton, Western Australia, Australia.
7. Mary Ann Elizabeth Cousins was born on 17 July 1868 in Dongara, Western Australia, Australia. She died in 1868 in Perth, Western Australia, Australia.