Ferdinand Rudio 1856–1929 Source: Wikimedia Commons About Ferdinand Rudio German and Swiss mathematician (1856-1929) People from the Same Era Curtis C. Williams 1861–1942 judge, lawyer, politician Masanobu Ishizaka 1860–1934 educator Tokyo William Mackenzie 1849–1923 entrepreneur Eldon William Somerville Shanks 1864–1951 painter, visual artist Frederic Irland 1860–1923 stenographer, writer Adrian Karl Junker 1850–1912 architect, painter Lemgo