She was the daughter of a Francis Symons and Catherine. There were numerous Symons families in Kooringa. Jane Symons would also have been about 53 years old at this time.
South Australia Deaths 1842-1972 (FindMyPast, https://www.findmypast.com : accessed 12 February 2021) database entry for Symons, Jane (Death Date: 21 August 1855, Marital Status: Not recorded, Age: 58y, Residence: , Death Place: ) Reference: District: The Murray/Burra, Book/Page: 4/73.