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Darwin Correspondence Project

John Gwyn Jeffreys


Conchologist, zoologist, and lawyer. Solicitor in Swansea until 1856, when he was called to the bar and moved to London. JP for Glamorgan, for Brecon, and for Hertfordshire. Deputy lieutenant, Hertfordshire; high sheriff, 1877. Treasurer of the Linnean Society of London and the Geological Society of London for many years. Conducted extensive deep-sea dredging researches. FRS 1840.





DSB: Dictionary of scientific biography. Edited by Charles Coulston Gillispie and Frederic L. Holmes. 18 vols. including index and supplements. New York: Charles Scribner’s Sons. 1970–90.

ODNB: Oxford dictionary of national biography: from the earliest times to the year 2000. (Revised edition.) Edited by H. C. G. Matthew and Brian Harrison. 60 vols. and index. Oxford: Oxford University Press. 2004.