Her home was named after a family in her first novel, A Soldier's Offspring, or, The Sisters (1809), which she submitted to Minerva Press, specialists in sentimental and Gothic fiction, in the hope of earning some money.

Parker went on to write six more novels,[2] all well-received by reviewers:[3] Elfrida; or, the Heiress of Belgrove (1810); Fitz-Edward, or, The Cambrians (1811); Virginia; or the Peace of Amiens (1811); Aretas (1813); The Guerrilla Chief (1815); and the epistolary Self-Deception (1816).

Self-Deception (a novel set after the marriage of the hero and heroine) explores the cultural and religious differences between English and French life.

"[4] Confusion over the authorship of two novels, Eva of Cambria, or, The Fugitive Daughter (1810) and Ora and Juliet, or, Influence of First Principles (1811), can be traced back to the Minerva Press.

[4] The mishap was explained by Parker in the preface to Fitz-Edward; or, the Cambrians: "It is necessary here to observe, that this Work would have appeared many months since; but, owing to a mistake, another manuscript, the production of another author, was sent to the press instead of mine, and, through inadvertency, printed under a similar supposition.