Photos

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.

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.

Stephen Schanuel (14 July 1933-25 July 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 Schanuel (14 July 1933-25 July 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

Stephen H. Schanuel (14 July 1933 – 21 July 2014) and Don Schack (13 Apr 1953-9 Feb 2010). From Scott Williams’ website, date unknown

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.

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.

Marta Cavallo Bunge (1938 – 25 October 2022). From Marta's website. Date unknown.

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

Walter Noll (January 7, 1925 ~ June 6, 2017). Date and photo credit needed

Newsletter clipping from Bill’s workplace before getting his PhD 1963

Newsletter clipping from Bill’s workplace before getting his PhD 1963

André Joyal, Bill and Peter T. Johnstone. Category Theory 2011. Vancouver. Photo by Matías Menni.

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.

Bill and Bob Walters (1943-2015). Memorial Conference for Aurelio Carboni. Milano, Italia. June 2013. Photo by Marta Bunge.

Fougeres, France. John Bell, Michael Wright, Bill, Colin McClarty, Angus McIntyre. June 16, 2005

Fougeres, France. John Bell, Michael Wright, Bill, Colin McClarty, Angus McIntyre. June 16, 2005

Bill at University of Milan math department. Known as "Via Saldini". 2013

Bill at University of Milan, “Via Saldini”. 2013

Richard Wood and Michael Wright 2013 at University of Milan Mathematics Department, known as "VIa Saldini". at the memorial conference for Aurelio Carboni.

Richard Wood and Michael Wright 2013 at University of Milan Mathematics Department, known as “VIa Saldini”. at the memorial conference for Aurelio Carboni.

Marta and Mario Bunge. need date and credit

Marta and Mario Bunge. need date and credit

Bill's 70th birthday celebrated at CT2007, Carvoeiro, Algarve (Portugal), June 2007. Picture by J. Koslowski

Bill’s 70th birthday celebrated at CT2007, Carvoeiro, Algarve (Portugal), June 2007. Picture by J. Koslowski

Francisco Marmolejo speaking at CT2007, Carvoeiro, Algarve (Portugal), June 2007. Picture by J. Koslowski

Francisco Marmolejo speaking at CT2007, Carvoeiro, Algarve (Portugal), June 2007. Picture by J. Koslowski

Mike Wright, Andrei Rodin, Bill, Alberto Peruzzi, John Bell near Pistoia, Italy.

Mike Wright, Andrei Rodin, Bill, Alberto Peruzzi, John Bell near Pistoia, Italy.

Anders Kock and Bill at the Café Odéon in Zürich, Switzerland 1966.

Anders Kock and Bill at the Café Odéon in Zürich, Switzerland 1966.

Bill and Susan Niefield October 2013. 50 years of FWL's Funtorial Semantics of Algebraic Theories conference at Union College, Schenectady

Bill and Susan Niefield October 2013. 50 years of FWL’s Funtorial Semantics of Algebraic Theories conference at Union College, Schenectady

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.

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.

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"

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”

Aurelio Carboni, (5 December 1942 - 11 December 2012). Photo Patrizia Carboni

Aurelio Carboni, (5 December 1942 – 11 December 2012). Photo Patrizia Carboni

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
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.
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

Samuel Eilenberg (September 30, 1913 – January 30, 1998) Columbia University

Bill and Marta C. Bunge (1938-2022) in 2013 at the Memorial Conference for Aurelio Carboni, Milan.

Bill and Marta C. Bunge (1938-2022) in 2013 at the Memorial Conference for Aurelio Carboni, Milan.

Bill, George Janilidze, Francis Borceaux and others in 2013, during memorial conference for Aurelio Carboni, Milan

Bill, George Janilidze, Francis Borceaux and others in 2013, during memorial conference for Aurelio Carboni, Milan

Massimo Galuzzi (1943-2023) and Stefano Kasangian with Bill in 2013 at University of Milan Mathematics Department, known as "Via Saldini", during the memorial conference for Aurelio Carboni.

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

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.

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

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)

Xiao-Qing Meng and Bill in the Math Department common room of Diefendorf Hall, year? (mid 1980s)

The Dialectic of Continuous and Discrete in the history of the struggle for a usable guide to mathematical thought. Symposium : Sets Within Geometry : Nancy, France 26-29 July 2011. Still from Video by Michael Wright Archive Trust

The Dialectic of Continuous and Discrete in the history of the struggle for a usable guide to mathematical thought. Symposium : Sets Within Geometry : Nancy, France 26-29 July 2011. Still from Video by Michael Wright Archive Trust

Bill speaking at CT2007, Carvoeiro, Algarve (Portugal), June 2007. Picture by J. Koslowski

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

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 speaking at CT2007, Carvoeiro, Algarve (Portugal), June 2007. Picture by J. Koslowski

Alberto Peruzzi, Bill and Bob Walters.

Alberto Peruzzi, Bill and Bob Walters.

Maria Christina Peddicchio, F.W. Lawvere, Renato Betti 2013 at University of Milan Mathematics Department, known as "VIa Saldini". At memorial conference for Aurelio Carboni.

Maria Christina Peddicchio, F.W. Lawvere, Renato Betti 2013 at University of Milan Mathematics Department, known as “VIa Saldini”. At memorial conference for Aurelio Carboni.