Jane Brown: My darling Heriott: Henrietta Luxborough, poetic gardener and irrepressible exile. HarperPress, London 2006, ISBN 978-0-00-712994-2, S.253–254 (Textarchiv – Internet Archive – Leseprobe, hier Anmerkung 57).
Charles Knight: William Caxton, the first English printer: a biography. William Clowes & Sons, London 1877 (archive.org).
