Bertold Wiesner

Bertold Wiesner
BornBertold Paul Wiesner
24 July 1901 
Died7 January 1972  (aged 70)
Resting placeEast Finchley Cemetery 
EducationDoctor of Science 
OccupationLecturer, scientist 
Spouse(s)Anna Gmeyner, Mary Barton 
Childrenup to 600

Bertold Paul Wiesner FRSE (1901–1972) was an Austrian-born physiologist. He is noted for coining the term 'Psi' to denote parapsychological phenomena; for his research into human fertility and the diagnosis of pregnancy; and for being the biological father of more than 600 people by anonymously donating sperm used by his wife the obstetrician Mary Barton to perform artificial insemination on women at her private practice in London.