Þorgils gjallandi (1851-1915) born as Jón Stefánsson was an Icelandic author.
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Coauthoring with W. G. Collingwood A pilgrimage to the saga-steads of Iceland. (1899, W. Holmes: Ulverston (publisher))
Jon Corzine | Jon Stewart | Jon Pertwee | Jon Anderson | Jon Voight | Jon Krakauer | Jon | Jon English | Jon Bon Jovi | Jon Vickers | Jon Lord | Jon Langford | Jon Brion | Jon Huntsman, Jr. | Jon Faddis | Jon Tester | Jon Ronson | Jon Fishman | Uli Jon Roth | Jon Foreman | Jon Hendricks | Jon Fosse | Jon St. James | Jon Spencer Blues Explosion | Jon Postel | Jon Lovitz | Jon Lech Johansen | Jon Lebkowsky | Jon Christensen | Guðmundur Árni Stefánsson |