Marriage of HEDGES Edith Marion and WORTHINGTON Richard Till, in Kensington, London, 1904. Volume 1A, page 424.
An article by A.D. Hard in the April 1909 edition of 'The Medical World'.
Page from the University of Vienna's enrollment record showing Bertold Wiesner's first semester at university.
Birth certificate of Bertold Paul Wiesner
Newspaper clipping from page 10 of the 3 April 1947 edition of the Ellensburg Daily Record (Washington, USA). Via Google Books.
Frederick Marion (stage name of Josef Kraus) was a Czech who who could "shatter a wine glass by concentration of thought". He wrote a book called In My Mind's Eye, with the foreword written by BPW and R.H. Thouless.
Article from Studies on Fertility, vol. 7, 1955. Blackwell Scientific Publications, Oxford.
Death certificate of Bertold Paul Wiesner, who died of a pulmonary embolism on 7 January 1972 in Ealing, UK.
Excerpt from the 'Answer Me This' podcast, featuring a question from Charlie about whether to engage with the BPW descendents.
English Wikipedia article about Bertold Wiesner, originally published 28 May 2015, but referenced here as at 11 January 2026.