Hanna Neumann

Johanna (Hanna) Neumann
Born	Johanna von Caemmerer (1914-02-12)12 February 1914 Lankwitz, Steglitz-Zehlendorf, Germany
Died	14 November 1971(1971-11-14) (aged 57) Ottawa, Ontario, Canada
Nationality	German
Citizenship	British, Australian
Alma mater	University of Berlin, University of Göttingen, University of Oxford
Known for	Group theory
Spouse	Bernhard Neumann
Children	Peter M. Neumann, Walter Neumann, Irene Neumann, Daniel Neumann, Barbara Neumann
Awards	Fellowship of the Australian Academy of Science (1969), Fellowship of the Australian College of Educators (1970).
Scientific career
Fields	Mathematics
Institutions	University of Hull, School of Mathematics, University of Manchester, Australian National University
Thesis	Sub-group Structure of Free Products of Groups with an Amalgamated Subgroup
Doctoral advisor	Olga Taussky-Todd

Johanna (Hanna) Neumann (née von Caemmerer; 12 February 1914 – 14 November 1971) was a German-born mathematician who worked on group theory.