Aŭtobiografio p. 68 f., Darwin Online, Upon the whole the three years which I spent at Cambridge were the most joyful in my happy life; for I was then in excellent health, and almost always in high spirits.
"Westminster Abbey » Charles Darwin". Westminster Abbey » Home. 2a de januaro 2016. Arkivita el la originalo la 4an de marto 2016. Alirita la 25an de majo 2019. Leff 2000, Darwin's Burial