Saunders Mac Lane (August 4, 1909 – April 14, 2005) in 1971. University of Chicago Photographic Archive, apf1-10418, Hanna Holborn Gray Special Collections Research Center, University of Chicago Library.
Walter Tholen (chairperson of Special Session for Bill CT23) Louvain La Neuve Belgium. July 4, 2023
Peter Johnstone, Bob Rosebrugh and Richard Wood at CT2015 Aveiro, Portugal. Photo by Pedro Nora
Bill in Zürich, March 10, 1965
Stephen Schanuel (July 14, 1933 – July 25, 2014) and John Williford “Jack” Duskin (1937-2020). Old Fort Niagara, 1982. Social at the end of the meeting Categories and Continuum Physics. Photo by Geraldine Duskin
Stephen H. Schanuel (14 July 1933 – 21 July 2014) and Don Schack (13 Apr 1953-9 Feb 2010). From Scott Williams’ website, date unknown
Walter Tholen. Workshop on Categorical Topology, in honour of Eraldo Giuli, on the occasion of his 70th birthday. March 18-20, 2010. Ponta Delgado, Azores. Photo by the organizers.
1982 Aurelio Carboni (Milan) Banquet for Categories in Continuum Physics Conference, Old Fort Niagara. Photo by Geraldine Duskin.
1982 Scott Williams at the banquet after the Categories and Continuum Physics Conference, Old Fort Niagara. Photo by Geraldine Duskin.
Bill with Alex Heller (July 9, 1925 – January 31, 2008), René Lavendhomme (background) and Aurelio Carboni(5 December 1942 – 11 December 2012). Coimbra, Portugal. Date, and photo credit needed.
Michael Barr in Montreal Feb 6, 2025. T-shirt and photo by Adam Barr.
Marta Cavallo Bunge (1938 – 25 October 2022). From Marta’s website. Date unknown.
Walter Noll (January 7, 1925 ~ June 6, 2017). Date and photo credit needed
André Joyal, Bill and Peter T. Johnstone. Category Theory 2011. Vancouver. Photo by Matías Menni.
Bill and Bob Walters (1943-2015). Memorial Conference for Aurelio Carboni. Milano, Italia. June 2013. Photo by Marta Bunge.
Walter Tholen and Joachim Kock with Bill at CT2015 in Aveiro, Portugal. Photo by Pedro Nora
Fougeres, France. John Bell, Michael Wright, Bill, Colin McClarty, Angus McIntyre. June 16, 2005
Francisco Marmolejo speaking at CT2007, Carvoeiro, Algarve (Portugal), June 2007. Picture by J. Koslowski
Bill at University of Milan, “Via Saldini”. 2013
Richard Wood and Michael Wright 2013 at the memorial conference for Aurelio Carboni.
Marta and Mario Bunge. need date and credit
Bill and Susan Niefield October 2013. 50 years of FWL’s Funtorial Semantics of Algebraic Theories conference at Union College, Schenectady
Anders Kock and Bill at the Café Odéon in Zürich, Switzerland 1966.
Bill’s 70th birthday celebrated at CT2007, Carvoeiro, Algarve (Portugal), June 2007. Picture by J. Koslowski
Saunders Mac Lane in Trieste, date and credit needed
Mike Wright, Andrei Rodin, Bill, Alberto Peruzzi, John Bell near Pistoia, Italy.
Clifford Ambrose Truesdell III (February 18, 1919 – January 14, 2000) and Bill at Fort Niagara, 1982 for the social that concluded the Categories and Continuum Physics conference. Photo by Geraldine Duskin.
1982 Fred Linton (1938- September 2, 2017) at Banquet for Categories in Continuum Physics Conference, Old Fort Niagara. Photo by Geraldine Duskin.
Aurelio Carboni, (5 December 1942 – 11 December 2012). Photo Patrizia Carboni
George Janelidze. Louvain La Neuve Belgium. July 4, 2023
Myles Tierney (September 1937 – 5 October 2017). Date and photo credit needed
Pierre/Peter Gabriel (1 August 1933 – 24 November 2015). From his website. Date and photo credit needed
Beppe Mettere and Sandra Mantovani 2013 at University of Milan Mathematics Department, known as “VIa Saldini”. just before the start of the memorial conference for Aurelio Carboni.
Samuel Eilenberg (September 30, 1913 – January 30, 1998) Columbia University
From Bob Walters’ website: “I knew Stephen Schanuel (14 July 1933-25 July 2014) mainly from his visits to Sydney. During his 1988 visit my friend Bob Bolton took this photograph of him”
Bill and Marta C. Bunge (1938-2022) in 2013 at the Memorial Conference for Aurelio Carboni, Milan.
Bill, George Janelidze, Dominique Bourn and others in 2013, during memorial conference for Aurelio Carboni, Milan
Massimo Galuzzi (1943-2023) and Stefano Kasangian with Bill in 2013 at “Via Saldini”, during the memorial conference for Aurelio Carboni.
Bill in October 2013 at 50 years of FWL’s Funtorial Semantics of Algebraic Theories conference at Union College, Schenectady. Still from video by Michael Wright of the Archive Trust
Michel Thiébaud and Bill in 2013 at the memorial conference for Aurelio Carboni.
Phil Mulry, Bill, and Kimmo Rosenthal, October 2013. 50 years of FWL’s Funtorial Semantics of Algebraic Theories conference at Union College, Schenectady. Kimmo and Phil both earned their PhDs at Buffalo with Bill
Xiao-Qing Meng and Bill in the Math Department common room of Diefendorf Hall, year? (mid 1980s)
Peter Johnstone, Louvain La Neuve Belgium. July 4, 2023
2011 Bill receiving the Giulio Preti Prize for the Dialogue between Science and Democracy from Giuliano Fedeli, Vicepresidente Consiglio regionale, Florence, Italy. March 19, 2011.
Giuseppe Rosolini, Louvain La Neuve Belgium. July 4, 2023
July 7, 2011, Vancouver, BC, during Bill’s talk “Categorical Dynamics” at the International Category Theory Conference CT 2011. Used by permission of the photographer Ryshard-Pavel Kostecki
Bill speaking at CT2007, Carvoeiro, Algarve (Portugal), June 2007. Picture by J. Koslowski
Peter Johnstone and Bill at CT2007, Carvoeiro, Algarve (Portugal), June 2007. Picture by J. Koslowski
Anders Kock speaking at CT2007, Carvoeiro, Algarve (Portugal), June 2007. Picture by J. Koslowski
Anders Kock, Louvain La Neuve Belgium. July 4, 2023
Alberto Peruzzi, Bill and Bob Walters (1943-2015).
Maria Christina Pedicchio, Bill and Renato Betti 2013 at memorial conference for Aurelio Carboni.
Workshop on Categorical Topology, March 18-20, 2010. Ponta Delgado, Azores.
Ieke Moerdijk, Louvain La Neuve Belgium. July 4, 2023