Christian von Ehrenfels
Christian von Ehrenfels was born on 20 June 1859 in Rodaun near Vienna and grew up at his father's castle Brunn am Walde in Lower Austria. He joined secondary school in Krems and first studied at the Hochschule für Bodenkultur in Vienna and then changed to the Universität Wien.
Christian Gauss
Gauss was born in Ann Arbor, Michigan. His father had fled Württemberg when Prussia began to dominate it in the 1860s. The son graduated from the University of Michigan at 20, worked as a newspaper correspondent in Paris, covering the Dreyfus case during which time he met Oscar Wilde who dedicated one of his poems to Gauss.