Pierre Helderman 1895–1944 Source: Wikimedia Commons People from the Same Era Takehiko Hamaguchi 1896–1976 businessperson Tokyo Orrin C. Evans 1902–1971 journalist Steelton Jean Piaget 1896–1980 biologist, logician, malacologist, pedagogue, philosopher, psychologist, university teacher, zoologist Neuchâtel Władysław Piotr Wiatr b. 1893 military officer Stróże Niżne America Chedister 1895–1975 actor St. Clair Township Johan Frederik Lodewijk Blankenberg 1888–1958 architect Haarlem