https://en.wikipedia.org/wiki/Neumann
Peter G. Neumann (born 1932), American computer scientist; Peter M. Neumann (1940–2020), British mathematician; Philipp von Neumann (1781–1851), Austrian diplomat; Randy Neumann (born 1948), American boxer and referee; Robert G. Neumann (1916–1999), American politician and diplomat; Robin Neumann, Dutch swimmer