She was the youngest daughter of Mary (née Johnson[1]) and Colonel James Capper,[1][2] an officer in the army of the East India Company, known as a writer and meteorologist.
[1][2] Her Children's Stories however were a more profound contribution to the history of literature, marking a departure into a new populous genre in early Victorian readers.
Much of his money came from slave sugar in St Vincent, where his uncle Walter Coningham had made a fortune at Colonarie Vale.
She took into her household the infant James Fitzjames, and raised him as a brother to her son; he achieved fame by volunteering for the doomed Arctic exploration known as the Franklin Expedition.
Capper and her husband lived in Cornwall, then Watford, before settling in the 1820s at Rose Hill, Abbots Langley, Hertfordshire.
[9] The Rose Hill social circle consisted of extended family and travelling friends, as well as neighbours such as the Earl of Essex at Cassiobury House.
[12] Fitzjames's letters home refer to Louisa's and William's illnesses; she took her son to Cheltenham, Switzerland, and Boulogne in search of cures.