Gerard van der Geer b. 1950 Source: Wikimedia Commons About Gerard van der Geer Dutch mathematician (born 1950) People from the Same Era Harifin A. Tumpa b. 1942 judge Soppeng Paul Westerberg b. 1959 guitarist, musician, singer, singer-songwriter Minneapolis Charles Daniel Balvo b. 1951 Catholic bishop, Catholic priest, archbishop, diplomat Brooklyn Jon-Erik Hexum 1957–1984 film actor, model, television actor Englewood Gebhard Halder 1942–2024 politician Bregenz Claus Michael Ringel b. 1945 mathematician, university teacher Zwickau