John P. Kirk (1867–1952), American politician, mayor of Ypsilanti, Michigan
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John Foster Kirk (1824–1904), American historian, journalist, educator and bibliographer
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The specific name kirki is in honor of explorer John Kirk (1832-1922), who has donated various other specimen of snails (not this species) to the Natural History Museum.
Rev John Kirk 1795–1858, divine and biographer (of Susannah Wesley mother of John Wesley, The Mother of the Wesleys, Jarrold, London 1868), Church of Scotland minister in Arbirlot 1837–1843 and later first Free Church of Scotland minister in Arbirlot
John Kirk, professor of Latin American Studies at Dalhousie University, Canada (Kirk has published several books about Cuban international relations, history and culture. His most recent publication, co-authored with Professor Michael Erisman, 'Cuba's Medical Internationalism: Origins, Evolution and Goals', was published in 2009 by Palgrave Macmillan).