Geleff wrote a book about his prison ordeals, Under Laas og Lukke ("Under lock and key") was published in 1876.
[5] In March 1877 Geleff and Pio emigrated to the United States, with financial assistance from the Danish police.
[3] Geleff occasionally wrote articles for Den Danske Pioneer, published from Omaha in Nebraska.
Geleff played a crucial role in formulating the radical agenda of the newspaper.
[7] Geleff returned to Denmark in 1920, and lived as a pensioner with support from the Social Democratic Party.