Major Leonard Darwin (15 January 1850 - 26 March 1943), a son of the English naturalist Charles Darwin, was variously a soldier, politician, economist, eugenicist and mentor of the statistician and evolutionary biologist Ronald Fisher. Wikipedia
... of Correspondence with Leonard Darwin 1915 - 1942 1915-1917 August 1915 (1), August 1915 (2), 3 September 1915 , 5 October 1915 , undated [probably follows 5 October], 11 October ... www.library.adelaide.edu.au/digitised/fisher/corres/darwi...
The definitive Wikipedia entry for Leonard Darwin. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Leonard_Darwin