File:Charles Darwin seated crop.jpgThis image is a derivative work of the following images: File:Charles_Darwin_seated.jpg licensed with PD-1923, PD-old-70 2009-06-15T18:20:30Z Jappalang
File:Charles Darwin aged 51 crop.jpgphotograph in File:Charles Darwin seated.jpg which is dated to circa 1854, as shown on the description of that image and in Charles Darwin: a life in pictures