2

Charles Darwin, Insectivorous Plants (London, 1875), p. 3

Darwin proudly references his son George’s technical drawing.

Lucy Wedgwood to Charles Darwin (1st May, 1865)

A letter from Darwin’s niece, Lucy Wedgwood, containing observations of Oxlips made at Leith Hill Place, Surrey.

Charles Darwin, The Different Forms of Flowers on Plants of the Same Species (London, 1877), p. 70

Lucy Wedgwood’s work on Oxlips was acknowledged in Darwin’s Different Forms of Flowers but she was identified only as “a friend in Surrey”.

Richard Litchfield, Charles Darwin’s son in law (date unknown), O. G. Rejlander

Charles Darwin to Henrietta Litchfield nee Darwin (13th May, 1872)

Darwin writes to Henrietta voicing concern about her husband (Richard Litchfield’s) contribution to Expression going unreferenced.

Charles Darwin, The Expression of the Emotions in Man and Animals (London, 1872), p. 89

Darwin publicly acknowledges his son in law Richard Litchfield’s contribution to Expression on the subject of music.

While Darwin undoubtedly respected the contributions that Henrietta made to Descent and other publications, her work was never acknowledged publicly. The story was very different for Darwin’s male contributors, including his sons, who – following Victorian convention – tended always to have their efforts referenced.