Kammala jumla mai zuwa: Bayan da Birtaniya ta kai hari a Copenhagen a 1807 da kuma barkewar
Yaƙin Gunboat tsakanin Burtaniya da masarautar Dano-Norwegian, ya ɗauki ƙaramin jirgin ruwa na Danish, "Admiral Juul", kuma a cikin aikin 2 ga Maris 1808 ya shiga HMS "Sappho"; Biritaniya ta kama "Admiral Juul" kuma ta bi da Jørgensen a matsayin mai zaman kansa. A cikin 1809, yayin da yake cikin Ingila a kan sharuɗɗa, ya ba da shawarar ga wani ɗan kasuwa cewa tafiya zuwa Iceland na iya zama mai riba kamar yadda tsibirin ke fama da ƙarancin abinci a lokacin, saboda ikon mallakar Danish kan cinikin Icelandic. Jørgensen ya kasance tare da tafiyar "Clarence" a matsayin mai fassara. Wannan tafiya ya kasa cinikin kowane kaya kamar yadda jirgin ya kasance Birtaniya kuma Denmark ya haramta cinikayya tare da Birtaniya. Ba da daɗewa ba bayan haka, "Rover" ya isa Reykjavík. Kwamitin Admiralty ya aika da shi don shirya hanya don tafiya na biyu na Birtaniya.