[5] Born and raised in Kapunda, a town in the Barossa Valley of South Australia, Brown is part of a sporting family.

[6][7] By the time Brown had reached her mid-teens, she was already participating in high level basketball, cricket, netball and Australian rules football competitions, and also playing tennis.

[2] In early 2019, Brown was named in the Australia under-19 women's cricket squad, to compete in a four-match series against a New Zealand emerging players side in March 2019.

[6][7] A few weeks after returning from the March 2019 cricket tour of New Zealand, and after turning 16, Brown was awarded her first senior State contract, for the Scorpions.

[16] In August 2021, Brown was named in Australia's squad for their series against India, which included a one-off day/night Test match as part of the tour.