Hi, thank you for your interest. The parents of Thomas Peters were James Peters & Fanny Murton of Stithians in Cornwall. Thomas' siblings were:
James Born 1815 maybe emigrated on Rajah with Thomas in 1847
Samual, 1813 m. Susanna Phillips, emig. on Sanipore 1848
Catherine, 1819 m. Edmund Martin, emig. on Sibella in 1848
Robert, 1825 m. Ann Oatey, emig. on Sibella in 1848
William, 1828-
Fanny 1821, m Joseph Mitchell emig on Poicters in 1848
Thomas was born in c 1823 and may have arrived in SA with his brother James on Rajah, or else arrived on Theresa with a wife and 2 children ( the wife either died on board or shortly after. I have not seen any mention of the 2 children.
They were all born in Stithians Cornwall.
Thomas & Elizabeth had two sons William (1848) and Thomas (1850) both born at Montacute S.A. A daughter Elizabeth Francis was born in 1852. Her birth cert. (difficult to read) says District of Adelaide, her death Cert. says Mt. Barker. her son's birth cert says Carrington. Elizabeth Francis married Charles Bell in Mt. Gambia Jan 1872, her address at that time was Drop Drop Mt Gambier.
Thomas and Elizabeth had another daughter Catherine who is listed on Elizabeth Francis' marriage cert. as living at Dartmoore Vic. and is listed as deceased on the death Cert. of Elizabeth Peters.
The death Cert. of Thomas' wife Elizabeth (Harris) in 10 Oct 1906 at Parkes NSW says that she was 82 and was in S.A. for 53 years and 7 years in NSW. She died at her Daughter Elizabeth Francis and Son in Law Charles Bell's farm. There is no mention of her being a widow on her death cert.
Her 2 sons had come up to the Parkes/ Forbes district at around 1890 with Elizabeth Francis & Charles.
Hope this is all clear and of some help.