The only extant account of Caroline Sheridan's character is contained in a letter written from Inveraray Castle by Matthew Lewis to his mother: "Mrs. T. Sheridan is very pretty, very sensible, amiable, and gentle; indeed so gentle that Tom insists upon it, that her extreme quietness and tranquillity is a defect in her character. Above all, he accuses her of such an extreme apprehension of giving trouble (he says) it amounts to absolute affectation".[2]
She accompanied her husband in 1813 to the Cape of Good Hope, where, while serving the office of colonial treasurer, he died of consumption on 12 September 1817. She received a small pension, and rooms at Hampton Court Palace were given to her by the prince regent. There she reared and educated her four sons and three daughters. After her children were grown up, Frances Kemble wrote in Records of a Girlhood: "Mrs. Sheridan, the mother of the Graces, is more beautiful than anybody but her daughters".[2]
She published three novels which – according to the Dictionary of National Biography – pleased the public. The first was Carwell, or Crime and Sorrow (1830), which was designed to expose the inequitable sentences pronounced upon those who had been guilty of forgery. The second was Aims and Ends (1833); and the third, Oonagh Lynch (1833). Soon after publication, Carwell was translated into French and published in Paris.[2]
She died on 9 June 1851, at 39 Grosvenor Place, in the house of her daughter, Lady Dufferin.[2]
Highfill, Philip H.; Burnim, Kalman A.; Langhans, Edward A. (1991). A biographical dictionary of actors, actresses, musicians, dancers, managers & other stage personnel in London, 1660-1800. Carbondale: Southern Illinois University Press. pp. 316–317. ISBN0809315254.