Jan Hatvani 1903–1968 Source: Wikimedia Commons People from the Same Era Karl Prusik 1896–1961 mountaineer Vienna Gustavs Klucis 1895–1938 designer, draftsperson, graphic artist, graphic designer, painter, photographer, poster artist Rūjiena Charles Mérieux 1907–2001 physician, scientist 2nd arrondissement of Lyon Honório de Freitas Guimarães 1902–1968 Petrópolis Alfred Jensch 1912–2001 astronomer Jelenia Góra Frank J. Morrison b. 1902 politician