Kurt Mahler

Kurt Mahler FRS (26 July 1903, Krefeld, Germany – 25 February 1988, Canberra, Australia) was a mathematician.
He was a student at the universities in Frankfurt and Göttingen, graduating with a Ph.D. from Johann Wolfgang Goethe University of Frankfurt am Main in 1927; his adviser was Carl Ludwig Siegel. He left Germany with the rise of Hitler and accepted an invitation by Louis Mordell to go to Manchester. However, at the start of World War II he was interned as an enemy alien in Central Camp in Douglas,Isle of Man, where he met Kurt Hirsch, although he was released after only three months. He became a British citizen in 1946.
He was elected a member of the Royal Society in 1948 and a member of the Australian Academy of Science in 1965. He was awarded the London Mathematical Society's Senior Berwick Prize in 1950, the De Morgan Medal, 1971 and the Thomas Ranken Lyle Medal, 1977.
He spoke fluent Chinese and was an expert photographer.
Mahler proved that the Prouhet–Thue–Morse constant and the Champernowne constant are transcendental numbers.