Alexander H. Leighton (July 17, 1908 – August 11, 2007) was a sociologist and psychiatrist of dual citizenship (United States, by birth, and Canada, from 1975). He is best known for his work on the Stirling County (Canada) Study and his contributions to the field of psychiatric epidemiology. Leighton died at the age of 99 at his home in Digby, Nova Scotia.
Aron Simis is a mathematician born in Recife, Brazil in 1942. He is a full professor at the Universidade Federal de Pernambuco, Brazil, and Class A research scholarship recipient from the Brazilian Research Council. He earned his PhD from Queen's University, Canada.He has previously held a full professorship at IMPA (Instituto de Matemática Pura e Applicada) in Rio de Janeiro, Brazil. He was president of the Brazilian Mathematical Society and member on several occasions of international commissions of the IMU (International Mathematical Union) and TWAS (Academy of Sciences for the Developing World).He has been director of three workshops in his field at the ICTP (Abdus Salam International Centre for Theoretical Physics). In Brazil he is a recipient of the National Medal for Scientific Merit at the order of Grã-Cruz and a member of the Brazilian Research Group in Commutative Algebra and Algebraic Geometry (1997–2007).At large he is a John Simon Guggenheim Fellow and has been awarded other fellowships from the Max Planck Institute, Japan Society for Promotion of Science, and the Istituto Nazionale di Alta Matematica. He is a member both of the Brazilian Academy of Sciences and the Academy of Sciences for the Developing World (Trieste, Italy).His main research interests in mathematics include: main structures in commutative algebra; projective varieties in algebraic geometry; aspects of algebraic combinatorics; special graded algebras; foundations of Rees algebras; cremona and birational maps; algebraic vector fields; differential methods.Simis is of Romanian origin, his parents immigrated to Brazil from Romania in the 1920s.
Robert W. Lichtwardt (November 27, 1924 – February 9, 2018) was a Brazilian-born American mycologist specializing in the study of arthropod-associated, gut-dwelling fungi (trichomycetes). He is known for his online monograph and interactive keys to trichomycete taxa.
Richard E. Spear (born 1940 in Michigan City, Indiana) is an American art historian and professor who specializes in Italian Baroque painting.
Joseph Hirsch (1910–1981) was an American painter, illustrator, muralist and teacher. Social commentary was the backbone of Hirsch's art, especially works depicting civic corruption and racial injustice.His works are in the Metropolitan Museum of Art, the Museum of Modern Art, the Whitney Museum of American Art, the Smithsonian American Art Museum, and many other museums.
Manuel Sandoval Vallarta (11 February 1899 – 18 April 1977) was a Mexican physicist. He was a Physics professor at both MIT and the Institute of Physics at the National Autonomous University of Mexico (UNAM).
Bob "Daddy-O" Wade (January 6, 1943 – December 23, 2019) was an American artist, based in Austin, Texas, who helped shape the 1970s Texas Cosmic Cowboy counterculture. He is best known for creating whimsical out-sized sculptures of Texas symbols. He was known for his uninhibited style and received attention as a serious artist in some art circles. He hand-tinting large photo-emulsion canvases of vintage photographs, some of which were exhibited at the Whitney Museum of American Art. His 40-foot-long (12 m) giant, 2,600 pound iguana, known as "Iggy", sat on top of the Lone Star Cafe in New York City from 1978 to 1989. "Iggy" changed owners a few times after the Lone Star Cafe closed and now resides atop the Fort Worth Zoo's Burnett Animal Health Science Center and greets visitors driving into the zoo grounds.
