Henry F. Baker 2026-10-24
A mathematician whose work included geometry and analysis.[ref]
https://mathshistory.st-andrews.ac.uk/LMS/baker_lms_obit.pdf. London Mathematical Society obituary, printed pp. 112–113: mathematical research, geometry school and life dates
Portrait of Henry F. Baker
. Photographer not identified; MacTutor History of Mathematics picture source. Commons life-plus-70 and United States pre-1931-publication claims, via Wikimedia Commons. Source. Herbert Robbins Created 2026-10-14 Updated 2026-10-24
Portrait of Herbert Robbins
. Photograph identified on the University of St Andrews portrait page. Ilya Piatetski-Shapiro Created 2026-10-18 Updated 2026-10-24
Identity and discipline: en-exact-sciences.tau.ac.il/math/in-memoriam
Portrait of Ilya Piatetski-Shapiro
. Externally hosted portrait identified at mathshistory.st-andrews.ac.uk/Biographies/Piatetski-Shapiro/pictdisplay/. Israel Gohberg Created 2026-10-18 Updated 2026-10-24
Identity and discipline: en-exact-sciences.tau.ac.il/math/in-memoriam
Portrait of Israel Gohberg
. Externally hosted portrait identified at mathshistory.st-andrews.ac.uk/Biographies/Gohberg/pictdisplay/. James Joseph Sylvester Created 2026-10-18 Updated 2026-10-24
Identity source: mathshistory.st-andrews.ac.uk/Biographies/Sylvester/
Portrait of James Joseph Sylvester
. Alfred Edward Emslie (1848–1918), painted portrait dated 1889; reproduction sourced to Oxford Dictionary of National Biography, article 26872. PD-Art: original public domain in origin/life-plus-100-or-shorter jurisdictions; File also states pre-1931 United States publication. Source usage terms, via Wikimedia Commons. Source. James R. Norris 2026-10-24
Mathematician working in probability theory and stochastic calculus; author of Markov Chains by James R. Norris. Author's Cambridge page.
James R. Norris at Oberwolfach in 2007. Photograph credited to Renate Schmid; Wikimedia Commons and the Oberwolfach Photo Collection.
Photograph by Renate Schmid. Verified file and source credit, licensed CC BY-SA 2.0 Germany. No changes. Source. Jiří Matoušek (mathematician) 2026-10-24
Portrait of Jiří Matoušek (mathematician)
. Renate Schmid; copyright Mathematisches Forschungsinstitut Oberwolfach, 2005. CC BY-SA 2.0, via Wikimedia Commons. Source. Johan Jensen Created 2026-10-13 Updated 2026-10-24
Portrait of Johan Jensen
. Theodor Vilhelm Rieger; Royal Danish Library, Copenhagen, object166670; photograph dated 1902–1913. Public domain under Commons PD-Denmark50 and PD-US templates. Source and usage information on the linked Wikimedia file page. Source. Johann Jakob Balmer Created 2026-10-18 Updated 2026-10-24
A mathematician.[ref]
https://mathshistory.st-andrews.ac.uk/Biographies/Balmer/. Independent professional profile
Portrait of Johann Jakob Balmer
. F. Brandseph, photograph circa 1865; Basel University Library, UBH Portr BS Balmer JJ 1825, 2c/2b/2a; contributed with Wikimedia CH. Public domain in Switzerland under expired-term rule and in life-plus-70 jurisdictions; library declares document public domain. Source usage terms, via Wikimedia Commons. Source. Johann Radon 2026-10-31
A mathematician whose work includes Radon's theorem, Radon measures, the Radon-Nikodym theorem and the Radon transform.
Portrait of Johann Radon around 1920
. Source. John Edensor Littlewood Created 2026-10-14 Updated 2026-10-24
Portrait of John Edensor Littlewood
. Photograph identified on the named portrait page. John Forbes Nash Jr. 2026-10-24
John Joseph O'Connor 2026-10-18
John Joseph O'Connor is a mathematician and a creator of the MacTutor history archive.[ref]
John Joseph O'Connor by John Joseph O'Connor and Edmund Frederick Robertson. MacTutor biography: quick information and mathematical work
John M. Lee Created 2026-10-14 Updated 2026-10-24
Homepage: sites.math.washington.edu/~lee/
Portrait of John M. Lee
. Portrait provided on the official University of Washington homepage. John Pollard (mathematician) 2026-10-31
John von Neumann 2026-10-24
A mathematician whose work includes the minimax theorem and, with Oskar Morgenstern, the foundations of expected utility and game theory.
Portrait of John von Neumann
. Portrait credited to wikispaces in the Wikimedia Commons file record. CC BY-SA 3.0. Source. Joseph Bertrand Created 2026-10-20 Updated 2026-10-24
Portrait of Joseph Bertrand
. Public-domain portrait, via Wikimedia Commons. Source. Joseph Kruskal 2026-10-24
A mathematician, statistician and computer scientist who worked in combinatorics and graph theory.[ref]
https://mathshistory.st-andrews.ac.uk/Biographies/Kruskal_Joseph/. MacTutor, full name, Quick Info and Summary; last updated October 2013
Joseph-Louis Lagrange Created 2026-10-18 Updated 2026-10-24
Portrait of Joseph-Louis Lagrange
. Zéphirin Belliard (1798–1871), lithograph; Wellcome Library, London / Wellcome Images, L0016620, library reference ICV 3511. Creative Commons Attribution 4.0 International., via Wikimedia Commons. Source. Karl Heun Created 2026-10-14 Updated 2026-10-31
Portrait of Karl Heun
. Historical portrait hosted by Wikimedia Commons; attribution and licensing are recorded on the source page. Source.

















