Ashton, Helen, and Katharine Davies. I Had a Sister: A Study of Mary Lamb, Dorothy Wordsworth, Caroline Herschel, Cassandra Austen. London: Lovat Dickson Limited, 1937.
See pp. 83–142. With illustrations by William Townsend. The sections on Mary Lamb and Dorothy Wordsworth are by Helen Ashton; the sections on Caroline Herschel and Cassandra Austen are by Katharine Davies.
Copies: Library of Congress [microfilm only] — Wordsworth Trust (Reference 1994.42.142)
Reprint: Folcroft, Pa.: Folcroft Library Editions, 1975. Library of Congress (PR119 .A8 1975).
Dorothy Wordsworth 