Cherry Lewis et Simon J. Knell, The Making of the Geological Society of London, Geological Society, (ISBN978-1-86239-277-9, lire en ligne), p. 383.
G. L. Herries Davies, Whatever Is Under the Earth: the Geological Society of London 1807–2007, Geological Society, (ISBN978-1-86239-214-4, lire en ligne), p. 175.
For the ascription to Andrews, see Belfast Natural History and Philosophical Society, Centenary volume, 1821–1921: A review of the activities of the society for 100 years with historical notes, and memoirs of many distinguished members ..., The Society, (lire en ligne), p. 119.
newulsterbiography.co.uk
Kate Newmann, Mary Andrews (1854–1914), Dictionary of Ulster Biography. Accessed 7 October 2012.