Julius Richard Büchi was a Swiss logician and mathematician.
He received his Dr. sc. nat. in 1950 at ETH Zurich under the supervision of Paul Bernays and Ferdinand Gonseth. Shortly afterwards he went to Purdue University in Lafayette, Indiana. Wikipedia
Born: January 31, 1924, Porto Alegre, State of Rio Grande do Sul, Brazil
Died: 1984 (age 60 years)