While many scholars have accepted this (and other melodramatic claims made by Lady Morgan) at face value, published works of correspondence about her family members make it extremely unlikely. The grandmother she shared with her Cavendish cousins, the formidable Dowager Lady Spencer, was zealously dedicated to promoting education, and later employed their governess as her own companion. This governess was Miss Selina Trimmer, the daughter of Mrs Sarah Trimmer, a well-known and respected author of moral tales for children. She taught them an extensive curriculum, considerably beyond mere literacy. There is a published letter Lady Caroline wrote on 31 October 1796 (just before her eleventh birthday) that not only demonstrates her literacy, but shows a merciless wit and talent for mimicry.