Emma Darwin: A Century of Family Letters 1792-1896 is a book in two volumes, edited by Henrietta Litchfield about her mother, Emma Darwin (née Wedgwood) and letters from their family. It was originally privately published in 1904 as Emma Darwin, Wife of Charles Darwin: A Century of Family Letters, but was publicly published under the shorter title in 1915 by John Murray.
The book covers the life of Emma Darwin (1808–1896) but starts from 1796 with Emma's family background and the nine Allen sisters of Creselly, Pembrokeshire, and their two brothers. These, Emma's mother, aunts and uncles, were the children of John Bartlett Allen (1733–1803), and his first wife (married 1763) Elizabeth (née Hensleigh, c. 1738-1790), Emma's maternal grandparents:
John Hensleigh Allen (uncle) had the following children (first cousins to Emma):
Sir James and Lady Mackintosh (aunt) had the following children, also first cousins to Emma:
Caroline Drewe, (aunt), had the following children, also first cousins to Emma:
Josiah Wedgwood, Emma's paternal grandfather had the following children:
The book also contains many letters from the correspondence of Charles Darwin, Emma's husband. It is therefore a very early example of a Darwin Industry book, along with The Life and Letters of Charles Darwin which was edited by Charles's son (and Etty's brother) Sir Francis Darwin, and More Letters of Charles Darwin edited by Frank and A. C. Seward.
The book was dedicated by Etty to her niece, Emma's granddaughter, Frances Cornford.
The Times described it as "an admirable piece of work, in which the editor, while largely effacing herself, yet gave a notable picture of an interesting family life".
The book was reviewed in The Eugenics Review by A. C. Seward who concluded that the book "bring[s] to us into the closest touch with wise and attractive personalities and at the same time they record facts of great scientific interest".