She's the daughter of this Francis Symons Francis Symons
South Australia Birth Index. (Genealogy SA, https://www.genealogysa.org.au/index.php : accessed 5 October 2022) birth transcript for SYMONS, Julia (Gender: F, Birth Date: 6 October 1852, Father: Francis SYMONS, Mother: Catherine FREETHY, Place of Birth: Adelaide) Reference: District: Adelaide, Book/Page: 4/86.