She began writing for the stage at the age of fifteen and was acting by that time, sometimes in London, but mostly in the English provinces.
She had an elder sister, Frances Mary Ross (later Fanny Robertson), and a younger half-brother, American John Mills Brown, both actors.
[1] After her 1792 marriage, Ross performed as Mrs Brunton, including a season with the company managed by her brother-in-law, Thomas Shaftoe Robertson, in Lincoln in 1802, in The Padlock as Leonora and The Cabinet as Floretta, among other plays.
[10] The same year, she played Margaretta in No Song, No Supper at the Robertson and Franklin company's Peterborough theatre.
[12] At Wisbech, in May 1820, she appeared as Miss Nancy in Killing No Murder, as Rosabelle in Foundling of the Forest, played together with Bluebeard, in which she played Fatima, as Agnes in The Mountaineers, in Pizarro; or, The Conquror of Peru, together with the Browns, and as Maria in Of Age Tomorrow on the same bill as Pizarro.