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Bertold Wiesner, c.1930s.
This website documents the work and genealogy of Bertold Paul Wiesner (1901–1972), an Austrian-British physiologist known for his work in human fertility. He is notable for being the biological father of hundreds of children, by anonymously donating sperm at the artificial insemination clinic run by his wife Mary Barton in London.
For more information about anything relating to the above research or this website, please contact info@bpw.family.