The Irish Presence at the International Congress of Mathematicians After WWII (Nov 2018)
Recently here, we surveyed the Irish connections to the International Congress of Mathematicians (ICM) until 1936, the last year it was held preWWII. This month, we continue that story, starting with the next ICM held in 1950. (Last updated 6 Sep 2020.)
The congress has been held every four years since 1950, apart from the Warsaw one in 1983, which should have been held in 1982. Starting in 1950, the ICM proceedings list one hour and halfhour invited talks, and short communications (10 or 15 minutes), though at Nice in 1970 there were only one hour and 50 minute talks.
The level and nature of Irish involvement in the ICMs has evolved over this period. There have been very few invited speakers, but lots of shorter talks, and Irish attendee numbers have risen overall. The information below, unlike that provided in the earlier blog about the preWWII period, relies heavily on the memory of some of those who attended. Some attendees appear below who are not listed in the official proceedings, and conversely, some proceeding list people who did not in fact attend. The ICM proceedings are available online, and links to specific volumes (as well as lists of invited speakers for each ICM) are provided.
For most of its history, the ICM has been hosted by the International Mathematical Union (IMU), which was set up in 1920, and then took a twodecade long break starting in 1932. Typically, Ireland sends a representative delegate to the IMU meeting held shortly before each ICM, in a nearby city, and that delegate generally also attends the ICM. One exception was Finbarr Holland, who attended the 1982 IMU meeting in Warsaw as the Irish delegate, but not the associated ICM which didn't take place until 1983, also in Warsaw. In recent decades, the Irish IMU delegate officially represents (and is funded by) the RIA.
As noted in the earlier blog, in its first decades the ICM featured some areas which are no longer part of its brief. In 1912, for instance, the subjects covered included astronomy, mechanics, economics, actuarial maths, and philosophy. A century into the ICM story, the nature and scope of maths had evolved, and by 1998, the Congress split the subject into the following 19 sections:
 Logic
 Algebra
 Number Theory and Arithmetic Algebraic Geometry
 Algebraic Geometry
 Differential Geometry and Global Analysis
 Topology
 Lie Groups and Lie Algebras
 Analysis
 Ordinary Differential Equations and Dynamical Systems
 Partial Differential Equations
 Mathematical Physics
 Probability and Statistics
 Combinatorics
 Mathematical Aspects of Computer Science
 Numerical Analysis and Scientific Computing
 Applications
 Control Theory and Optimization
 Teaching and Popularization of Mathematics
 History of Mathematics
Cambridge, USA (1950)
An ICM had been due to be hosted by Harvard in 1940, but WWII intervened. This is discussed in the Proceedings of the 1950 ICM (page 121, Vol 1). Finally, in 1950, a congress was (co)hosted by Harvard in Cambridge (Massachusetts). Curiously, two pages later in the proceedings just cited, it is mentioned that (Dubliner) John L. Synge had resigned from the organizing committee due to leaving the USA for DIAS in 1948.
The 1950 ICM was a huge, sprawling, American dominated meeting, with 1410 USbased attendees, and minimal Soviet bloc presence. There were many more speakers (including one Irish one) than are listed here. That list, in turn, is longer than the 21 "stated addresses" invited by the organizing committee given on page 136 of Vol 1 of the above proceedings. It is indicated that to accommodate the large number of attendees four conferences were also offered, in algebra, analysis, applied mathematics and topology. There were also subconferences, and overall there were 374 contributed papers presented.
This was a transitional congress in many ways, as the nature of maths and the community involved in it was changing very rapidly, and these developments are reflected in the Irish presence there too. On the one hand, it was attended by some who had spoken at earlier congresses, such as A. J. McConnell and Jack Todd, the former speaking on "The Hyperbolic Method of Approximation to a Solution of a General Class of Boundary Value Problems" (page 98, Vol 1 of proceedings). Sadly, Arthur Conway died in Dublin soon before setting out to the USA to attend this congress, which would have been his fourth. There was also new blood, including Herbert Tate and Jim McConnell.
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Herbert Tate, Jim McConnell
Herbert Tate (18941983) was born in Cork, and educated at TCD (BA 1917, MA 1921), having started his studies at UCC. His career was spent at McGill, where he authored books on financial mathematics.
Theoretical physicist Jim McConnell (19151999) was born 25 February in Dublin, and was educated at UCD and in Rome, where he was ordained as a priest and also earned his doctorate ("The Lorenz formula  The Lorenz for the refraction index") from La Sapienza University (in 1941). His career started at the newly founded Dublin Institute of Advanced Studies, but was mostly spent at St Patrick's College, Maynooth, where he also served as registrar.
Iain Adamson & Roger Kyle at Princeton
(photo courtesy of Margaret Adamson)
Roger Kyle (19271952) was also in attendance. He was born in Belfast and grew up there and in Dublin, his father being a prominent trade unionist. He was educated at first at TCD (BA 1949), where he had been a maths scholar, then went to Princeton for his doctorate. He was in Cambridge with his PhD advisor Ralph Fox the knot theorist. Iain Adamson (who joined QUB staff in 1952, see below) was also at this ICM, along with his Princeton advisor, Emil Artin. Tragically, Roger died in a fall on Cave Hill in Belfast very soon after completing his doctorate and commencing an appointment at TCD, while hiking with Iain. His advisor Fox saw to it that the thesis was published several years later in two papers under the name Roger Kyle.
Amsterdam (1954)
Travelling to Holland was relatively easy for most Irish (or Irishbased) maths people, and 17 made the trip. Speakers included 5 for whom this was not their first congress (photos and biographical information provided earlier): Jim McConnell ("The Negative Proton Problem", page 360, Vol 2), Bill McCrea ("Compressible Flow in a Gravitational Field", page 361, Vol 2), Jack Semple ("The Triangle as a Geometric Variable", page, Vol 3), Jack Synge ("Maxwellian Fields in Vauo without Singularities and with Finite Total Energy", page 380, Vol 2), and Jack Todd ("The Condition of Matrices", page 385, Vol 2).
Murray MacBeath
A.M. (Murray) Macbeath (19232014) also spoke (on "The ClassNumber of the Symmetric Semigroup", page 431, Vol 1). He was born in Scotland and brought up there and in Belfast. He was educated at QUB and worked at Bletchley before continuing his studies, first at Cambridge, and then at Princeton, where he got his PhD (on "The Geometry of NonHomogeneous Lattices") in 1950 under Emil Artin. His career was mostly spent at Dundee, Birmingham and the University of Pittsburgh.
H. F. (Harry) Sandham (19171963) spoke too (on "The Perimeter of an Ellipse", page 65, Vol 2). He was a Dubliner who grew up in part in Sligo, and was a TCD maths scholar and graduate (BA 1939, MA 1941?). He taught first at QUB, then for over a decade at TCD. He also spent some time at DIAS, before moving to Nelson Research Laboratories (English Electric Labs) in Staffordshire. He was an active contributor to journals throughout his relatively short life, his name even appearing alongside those of Erdős and Polya, and he obtained his TCD PhD on "Products of the Hypergeometric Functions, with published papers" in 1957, around the time he left academia.
The other 10 attendees of interest were:
Iain Adamson (19282010), a Scottish mathematician who was on the staff at QUB (19521960).
Vincent Hart (Hull born Corkman), UCC grad and former staff member, PhD student of Synge's, long based at the University of Queensland.
Cornelius Lanczos (18931974), Hungarian mathematical physicist then 2 years into a decade and a half spent at DIAS.
A.J. McConnell (19031993), TCD grad and mathematical physics professor who had been at previous ICMs
Jim Pounder (19222002), Canadian postgraduate then finishing a 2 year stay at DIAS, where he later earned his PhD under Synge.
Michael Power (18851974), UCD grad from Kilkenny, then over 4 decades on UCG staff.
Paddy Quinlan (19192001), applied mathematician from Limerick. UCC grad, long on staff there.
Hans Schneider (19272014), Austrian born and Scottish raised, then 2 years into a 7 year stint on QUB staff.
Sheila Tinney (née Power, 19182010), Galway born mathematical physicist, UCD grad, career there. Daughter of Michael above. She was the first Irish woman and Irish graduate to receive a doctorate in maths science.
Barbara Yates (19191998), Dublin born, Belfast raised, TCD graduate, career at Royal Holloway. She was the first Irish woman and Irish graduate to receive a doctorate in pure maths.
Heini Halberstam (see below) also spoke at the Dutch congress (page 428 Vol 1).
Edinburgh (1958)
The Scottish congress had a smaller Irish contingent, but of the 5 talks given that by Cornelius Lanczos was a "plenary". He spoke on "Extended Boundary Value Problems" (page 154). Jim McConnell spoke on "Sir Edmund Whittaker's Philosophy of Science", and J.L. Synge spoke on "Elasticity in General Relativity".
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Paddy Kennedy & Paddy Barry
Paddy Kennedy (19291966) gave a talk called "On the Growth of Multivalent Functions". He was born in Clarecastle, Clare, and was educated at UCC and the University of Exeter (for technical reasons his 1955 PhD "On the growth of Certain Integral and Subharmonic Functions" with Walter Hayman was awarded by UCD). At this stage in his career he was teaching at UCC. Later he became the first professor of mathematics at the new University of York, sadly dying a few years later.
Paddy Barry spoke on "The Minimum Modulus of Certain Integral Functions of Zero Order". He was born in Ballynacargy, Mullingar, Westmeath, and grew up in Glenville and Mallow, Cork. He was educated at UCC, earning an NUI Travelling Studentship, and was at this time working on his PhD at Imperial College under Walter Hayman ("The Minimum Modulus of Integral Functions of Small Order", 1960). He has had a long career at UCC, authoring notable books on geometry.
Jim Flavin later wrote in the Bulletin of the IMS about a meeting that took place at the Edinburgh congress to discuss the setting up of a DIAS symposium, which did indeed start later that year.
Stockholm (1962)
In Sweden, short communications were given by 8 people of interest to us in an Irish context, half of those being new to these congresses. Paddy Barry spoke on "The Minimum Modulus of Integral Functions", Jim McConnell on "Rotations and Angular Momenta", Bill McCrea on "A Cosmological Application of Information Theory", and Jack Synge on "The Hamiltonian Method Applied to Water Waves".
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Cathleen Morawetz
Synge's daughter Cathleen Morawetz (née Synge, 19252017) who was born in Toronto and brought up mostly there, but had attended Alexandra College in Dublin for a few years as a child, spoke on "An Approach to Steady State for the Wave Equation". She was then 10 years into a distinguished career at the Courant Institute, which she would later head. In 1996, TCD awarded her a ScD degree.
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James McMahon, Ludvik Bass & Don McQuillan
Father James J. McMahon (19241981) from Woodford, Galway, spoke on "Invariant Volume Element in C^n". He was a graduate of Maynooth, and spent much of his career there, with a 1952 PhD on "Lower Bounds for the Electrostatic Capacity of a Cube" done at the DIAS under Synge.
Mathematical physicist Ludvik Bass from Czechoslovakia spoke on "The Motion of Test Charges in Rapidly Oscillating Eletromagnetic Fields". He was then on the TCD staff, having already been 2 years at DIAS, where he published with Schrödinger. Most of the rest of his career has been spent at the University of Queensland.
Don McQuillan spoke on "Some Structure Theorems for SL(2,n)". He was born in Dundalk, Louth, as was educated at UCG and at Johns Hopkins University. At this stage he had recently earned his PhD on "A Generalisation of a Theorem of Heck" with JunIchi Igusa, and was teaching at UCG. Most of his career was spent at the University of Wisconsin (Madison) and at UCD. Over the past few decades he has become a sought after expert on quality assurance, most recently at the Vatican.
A further 15 people from Ireland were present, including earlier attendees A.J. McConnell (listed as being from Eire), Jack Semple, Jack Todd, and Barbara Yates. The others were:
Fran Barry (née King, 19392008) was born in Belfast and educated at UCC. At this stage she had just married Parry Baddy. Later, after many years of teaching, she did an MSc and PhD in maths at UCC.
Phil Gormley (19101973) was born in Claudy, near Derry, and was educated at UCD and at the University of Edinburgh. He taught at UCD for 40 years, and was a keen translator of Russian mathematics.
Victor Graham (19141991) was born in Cavan town, and was educated at TCD (BA 1936, MA 1939), where he'd been a maths scholar. After a decade teaching at the High School in Dublin, he joined the staff at TCD, where he taught for a further 4 decades. He was a popular and inspiring teacher, and got a ScD degree from TCD in 1989.
Heini Halberstam (19262014) was born in Most, Czechoslovakia, and grew up there and in England, where he was educated at the University of London. After a decade of teaching at Exeter and Royal Holloway, in 1962 he had just become professor of maths and head of department at TCD, but only stayed 2 years. The rest of his career was spent at Nottingham and then UrbanaChampaign.
Maurice Kennedy (19241994) was born in Dublin, and was educated at UCD and at Caltech. His career was spent at UCD.
Stephen O'Brien (19181992) was born in Nurney, Kindare, and was educated at UCD (BSc 1939, MSc 1940), where he taught for almost half a century. He was also a scholar at DIAS in the 1950s and coauthored a paper with J. L. Synge.
Fred O'Connor (19081989) was born in Polranny, Mayo, and grew up in Roscommon and Westmeath. He was an assistant at Dunsink from 1924 on, and also taught maths and astronomy at TCD from the 1940s to the 1960s.
Siobhán O'Shea (19322002, later Vernon) was born in Macroom, Cork, and educated at UCC (BSc 1952, MSc 1954) where she also taught for 35 years. She was the first woman to get a PhD in maths in Ireland, in 1964, on "Some Results in Classical Analysis", nominally under Paddy Kennedy, for previously published work.
David Simms (19332018) was born in India and grew up there and in Dublin. He was educated at TCD (BA 1955), where he was a scholar, and at Cambridge. He spent most of his career at TCD.
JR (Dick) Timoney (19091985) was born in Belleek, Fermanagh. He was
educated at UCD, and studied in Edinburgh, before serving almost half a century on the staff at UCD.
Seán Tobin was was born in Moneygall, Tipperary, and was educated at UCG
and at Manchester. He spent 40 years at UCG, spearheading an algebra and group theory focus there.
Trevor West (19382012) was born in Midleton, Cork, and was educated at TCD and Cambridge. He spent most of his career at TCD, and also served several terms on Seanad Éireann.
Iain Adamson, who had by then left QUB for Dundee, was also in Stockholm.
Moscow (1966)
The 1966 congress was attended by Paddy Barry, John Miller, Siobhán O'Shea (later Vernon), David Simms, and Seán Tobin. Also present was Rex Dark (later on the staff at UCG), and Ivor Maddox (later on the staff at QUB).
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John Miller
John Miller was born in Dublin and is a TCD graduate (BA 1961). At the time of this congress, he was working at the Univ of Massachusetts at Boston, having recently completed his PhD at MIT on "An Improvement to the Kreiss Matrix Theorem" with Gil Strang. He spent 3 decades of his career at TCD, working on numerical analysis.
Nice (1970)
The 1970 congress in Nice had at least 16 Irish representatives, plus Rex Dark (later on UCG staff). Previous attendees Victor Graham, James MacMahon, Jim McConnell, John Miller, Stephen O'Brien, Siobhan O'Shea, J.R. Timoney, and Seán Tobin were joined by 8 newcomers.
Tom Ambrose was born in Newcastle West, Limerick, and was educated at UCD and TCD. He taught for 4 decades at Kevin St (later DIT), and also at UCD.
Derek Burgess was born in Tyrone, and was educated at QUB and at Cambridge. He taught at Magee, then at QUB for 3 decades.
Barry Eke (listed as Irish) is believed to be English, and was educated at Cambridge. He was in the middle of a 4 year stint at QUB during this congress. His later career was at Sheffield.
Petros Florides was born in Cyprus and was educated at the University of London. He has been at TCD since 1962.
Tim Murphy (19332017) was born in London and was educated at Cambridge. From 1965 on, his career was spent at TCD.
Martin Newell (junior) was born in Galway and educated at UCG (BSc 1961, MSc 1962) and Frankfurt. Most of his career was spent at UCG.
Con O'Leary from Cork city was educated at UCC (BA circa 1953?, MA circa 1966), and taught first at secondary school. Later, after this 1970 congress, he taught at UCC for a decade and a half.
M. R. (Roger) Smyth was born in Lurgan, Antrim, and was educated at Cambridge and at TCD. In 1970, he was a PhD student of Trevor West's. He later worked at QUB and at DHSS in Northern Ireland.
Vancouver (1974)
There were no Irish related speakers at this Canadian congress, but attendees included Jim McConnell, Seán Tobin, Trevor West and 7 new names.
David Judge
Michael Mortell
Nora Ni Chuiv
Liam O'Callaghan
Donal O'Donovan
Tony O'Farrell
Chris Wright
Helsinki (1978)
Unusually, the proceedings of this Finnish congress do not list short communications. Were any by Irish speakers? The over 3000 "members" attending included Victor Graham, John Miller, Seán Tobin, Trevor West, and 5 people enjoying their first IMC:
Donal Hurley
Tom Laffey
Brian McEvoy
Gerry Murphy
Richard Timoney
Warsaw (1983)
Finbarr Holland represented the RIA at the IMU meeting in Warsaw the year before before this congress. Finbarr Holland and Rex Dark attended the IMC itself, as did future TCD staff member David Wilkins.
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Rex Dark
Rex Dark was born in Huddersfield, spent his childhood in Leatherhead, Surrey, and was educated at Cambridge. After a few years teaching there, in 1973 he moved to UCG, where he taught for 30 years.
Victor Graham and Jon Hafsteinn Jonsson are both listed as nonattending members from Ireland. The second man is presumably really from Iceland.
Berkeley (1986)
Tom Laffey represented the RIA at the IMU meeting in nearby Oakland right before this congress. At the ICM, Graham Ellis gave a talk on "Higher Dimensional Crossed Modules and Multirelative Algebraic Ktheory".
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Graham Ellis
He was born in Wales and educated entirely at Bangor. His career has been spent at UCG/NUIG.
Other ICM attendees included Victor Graham, Tom Laffey, and 4 new names:
James Dunwoody
Stephen Gardiner
Fiacre Ó Cairbre (then a postgraduate student at UC Berkeley)
Diarmuid Ó Mathúna
Also in attendance was Martin Mathieu (later on staff at QUB).
Kyoto (1990)
Tom Laffey also represented the RIA at the next IMU meeting, which was in Kobe right before the Kyoto congress. Among the 4000 ICM attendees were Tom Laffey, Tony O'Farrell, Francesca O'Rourke, and Sean Tobin.
Francesca O'Rourke (later Shearer) is a QUB graduate who has been on the staff there for over 2 decades.
Zürich (1994)
Finbarr Holland represented the RIA at the IMU meeting in Geneva right before this congress. The almost 2500 attendees included Rex Dark, Donal Hurley, Tom Laffey, Richard Timoney, Sean Tobin, and 3 new:
Sean Dineen
David Wilkins
Martin Mathieu (later to work at Maynooth and then QUB) was also there. Kikuchi Shigeki is listed as being from Ireland.
Berlin (1998)
Attendees Tom Laffey and David Simms were joined by:
Kevin Hutchinson
Martin Mathieu
Richard Watson
David Wilkins
Beijing (2002)
The only Irish attendees in China were Martin Mathieu, Richard Timoney, and Richard Watson.
Madrid (2006)
At the Spanish congress, Peter McCullagh (with Jie Yang) gave an invited address ("Stochastic Classification Models", page 669, Vol 3).
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Peter McCullagh
He was born near Plumbridge, Tyrone, and was educated at Birmingham and Imperial College, getting his 1977 PhD on "Analysis of Categorical Ordered Data" under Atkinson & Cox. Most of his career has been spent at the Univ of Chicago.
(Issabelle Gallagher, French daughter of Fintan Gallagher from Donegal, also spoke.)
Tom Laffey, Martin Mathieu, Donal O'Donovan, Tony O'Farrell, and Richard Timoney attended too, as did Richard Watson (not listed in the proceedings). Also present were:
Bernd Kreussler (Mary Immaculate)
Michael McGettrick (NUIG)
Noel Murphy
Dmitri Zaitsev (TCD)
Hyderabad (2010)
Philip Maini
Mathematical biologist Philip Maini gave an invited talk on "Modelling Aspects of Tumour Technology" (page 3091, Vol 4). He was born in Magherafelt, Londonderry, and was educated at Oxford, where he has spent most of his career. His 1985 PhD "On MechanoChemical Models for Morphogenetic Pattern Formation" was done under Jim Murray.
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Kevin Costello
Kevin Costello gave an invited talk on "A Geometric Construction of the Witten Genus, I" (page 942, Vol 2). He was born in Cork and educated at Cambridge, getting his PhD in 2003 on "GromovWitten Invariants and Symmetric Products" under Ian Grojnowski. At the time of the congress he was at Northwestern; now he is at the Perimeter Institute in Waterloo, Ontario.
John Miller was one of the 6 Irish participants listed on page 797 of Vol 1 of the proceedings. He gave a short communication on "A Fitted Mesh Method for a Partially Singularly Perturbed Linear System of Time Dependent ReactionDiffusion Equations". He also chaired Section 18 (Mathematics in Science and Technology).
The other official Irish participants were Richard Timoney and Donal O'Donovan, plus these 3 new names:
Brendan Browne (DIT) from Cavan is a UCD and Leeds graduate, whose career was spent at Kevin Street / DIT.
Dmitry Bykov (TCD) from Russia, at this stage doing his PhD at TCD.
Jiri Vala from the Czech Republic was educated at Bratislava and the Hebrew University of Jerusalem. Since 2005 he has been teaching at Maynooth.
Seoul (2014)
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Samson Shatashvili, Anton Gerasimov & David Conlon
Samson Shatashvili gave an invited talk on "Gauge theory angle at quantum integrability" (page 1195, Vol 3). He was born in the USSR (Republic of Georgia) and educated at Tbilisi State University and the Steklov Institute of Mathematics (PhD 1984). He has been University Professor of Natural Philosophy at TCD since 2002.
Anton Gerasimov gave an invited talk on "Archimedian Langlands duality and exactly solvable quantum systems" (page 1097, Vol 3). He was at TCD from 2003 to 2016.
David Conlon gave an invited talk on "Combinatorial theorems relative to a random set" (page 303, Vol 4). He was born in Sligo, and grew up in Lanesbororough, Longford, and was educated at TCD and Cambridge. His 2009 PhD on "Upper Bounds for Ramsey Numbers" was done with Tim Gowers. He taught for a decade at Oxford, moving to Caltech in 2019.
No other Irish representation at the Korean congress is known of.
Rio de Janeiro (2018)
Ben McKay was the Irish delegate in Rio. A Canadian, educated at Toronto and Duke, he had been at UCC since 2005.
Useful links: Invited ICM speakers / ICM Proceedings
Big thanks to Tom Laffey, Kevin Hutchinson, Tony Wickstead, Martin Mathieu, Brian McMaster, Tony O'Farrell, Richard Timoney, Richard Watson, John Miller, David Spearman, Vincent Hart, James Ward, Olivia Bree, and others for numerous invaluable tipoffs in gathering the information shared here.
Below we present a table listing all known Irish ICM connections from 1950 to the present.
Names in brackets denote people who were Irish based earlier or later in their careers, relative to their listed ICM entry.
Please alert us to any omissions or errors.
Year  City  Speakers  Other participants 
1950 
Cambridge (USA, 30 Aug  6 Sep) 
A. J. McConnell ("The Hyperbolic Method of Approximation to a Solution of a General Class of Boundary Value Problems", page 98 Vol 1) 
(Iain Adamson) Roger Kyle A. J. McConnell Jim McConnell Herbert Tate Jack Todd (as guest of Olga Taussky Todd) 
1954 
Amsterdam (29 Sep) 
Murray Macbeath ("The ClassNumber of the Symmetric Semigroup", page 431, Vol 1) Jim McConnell ("The Negative Proton Problem", page 360, Vol 2) Bill McCrea ("Compressible Flow in a Gravitational Field", page 361, Vol 2) H.F. Sandham ("The Perimeter of an Ellipse", page 65, Vol 2) J.G Semple ("The Triangle as a Geometric Variable", page, Vol 3) J.L. Synge ("Maxwellian Fields in Vauo without Singularities and with Finite Total Energy", page 380, Vol 2) J. Todd ("The Condition of Matrices", page 385, Vol 2)

Iain Adamson (Heini Halberstam, page 428 Vol 1) Vincent Hart Cornelius Lanczos A.M. Macbeath A.J. McConnell Jim McConnell Bill McCrea Jim Pounder Michael Power Paddy Quinlan H. F. Sandham Hans Schneider J.G. Semple J.L. Synge Sheila Tinney Jack Todd Barbara Yates 
1958 
Edinburgh (1421 Aug) Proceedings 
Paddy Barry ("The Mininum Modulus of Certain Integral Functions of Zero Order") Paddy Kennedy ("On the Growth of Multivalent Functions") Cornelius Lanczos (one hour, "Extended Boundary Value Problems", page 154) J McConnell ("Sir Edmund Whittaker's Philosophy of Science") J.L. Synge ("Elasticity in General Relativity") 
Paddy Barry Vincent Hart Paddy Kennedy

1962 
Stockholm (1522 Aug) 
short communications: Paddy Barry ("The Minimum Modulus of Integral Functions") Ludvig Bass ("The Motion of Test Charges in Rapidly Oscillating Eletromagnetic Fields") J. McConnell ("Rotations and Angular Momenta") Bill McCrea ("A Cosmological Application of Information Theory") James McMahon ("Invariant Volume Element in C^n") Don McQuillan ("Some Structure Theorems for SL(2,n)") Cathleen Morawetz ("An Approach to Steady State for the Wave Equation") J.L. Synge ("The Hamiltonian Method Applied to Water Waves") 
(Iain Adamson) Fran Barry Ludvik Bass Phil Gormley Victor Graham Heini Halberstam Maurice Kennedy A.J. McConnell (Eire) S. O'Brien F. J. O'Connor S. O'Shea Jack Semple D. Simms J.R. Timoney Sean Tobin Jack Todd T. West Barbara Yates 
1966 
Moscow (1626 Aug) 
Paddy Barry (Rex Dark) John Miller Siobhán O'Shea David Simms (listed?) Seán Tobin


1970 
Nice (110 Sep) 
Thomas Ambrose Derek Burgess (listed as Irish) (Rex Dark) Barry Eke (listed as Irish) Petros Florides Victor Graham James MacMahon James McConnell John Miller Timothy Murphy Martin Newell Stephen O'Brien Cornelius O'Leary Siobhan O'Shea Malcolm Smyth J.R. Timoney Seán Tobin 

1974 
Vancouver

David Judge Jim McConnell Michael Mortell Nora Ni Chuiv Liam O'Callaghan Donal O'Donovan Tony O'Farrell Seán Tobin Trevor West Chris Wright 

1978 
Helsinki (1523 Aug)

Proceedings do not list short communications. Plenaries (17), 45min (121), short communications (10 mins, c. 500) 
3038 members, including: Victor Graham Donal Hurley Tom Laffey Brian McEvoy John Miller Richard Timoney Seán Tobin Trevor West 
1983 
Warsaw (1624)

Plenaries (13), 45min (161), short communications (680) 
Victor Graham (nonattending member) Finbarr Holland Rex Dark Jon Hafsteinn Jonsson (nonattending member, should be designated as being from Iceland?) (David Wilkins) 
1986 
Berkeley (311 Aug) 
Plenaries (16), invited talks (147) and about 700 short communications (10 mins) Graham Ellis ("Higher Dimensional Crossed Modules and Multirelative Algebraic Ktheory") 
3586 members, including (page LXXVIII, Vol 1): James Dunwoody Stephen Gardiner Victor Graham Tom Laffey (Martin Mathieu) Fiacre O Cairbre Diarmuid Ó Mathúna 
1990 
Kyoto (2129 Aug) 
Plenaries (15), 45minute (138+5), short communications (620) 
4000 attendees Tom Laffey Tony O'Farrell Francesca O'Rourke Sean Tobin 
1994 
Zürich (311 Aug)

Plenaries (16)), 45mins (145+100) 
2476 attendees: Rex Dark Sean Dineen Donal Hurley Tom Laffey (Martin Mathieu) Kikuchi Shigeki Richard Timoney Sean Tobin David Wilkins 
1998 
Berlin 
3346 people Kevin Hutchinson Tom Laffey Martin Mathieu David Simms Richard Watson David Wilkins 

2002 
Beijing 
Martin Mathieu Richard Timoney Richard Watson


2006 
Madrid 
Peter McCullagh (with Jie Yang): invited address ("Stochastic Classification Models", page 669, Vol 3) (Issabelle Gallagher) 
over 4500 8 Irish (page 830, Vol 1) Bernd Kruessler Tom Laffey Martin Mathieu Michael McGettrick Noel Murphy Donal O'Donovan Tony O'Farrell Richard Timoney Richard Watson (not listed) Dmitri Zaitsev 
2010 
Hyderabad (1927 Aug) 
Philip Maini ("Modelling Aspects of Tumour Technology", page 3091, Vol 4). Kevin Costello ("A Geometric Construction of the Witten Genus, I", page 942, Vol 2) Short talk: John Miller ("A Fitted Mesh Method for a Partially Singularly Perturbed Linear System of Time Dependent ReactionDiffusion Equations"). He also chaired Section 18 (Mathematics in Science and Technology). 
6 Irish listed (page 797 Vol 1) Brendan Thomas Browne Dmitry Bykov John Miller Donal O'Donovan Richard Timoney Jiri Vala  Philip Maini Kevin Costello 
2014 
Seoul (1321 Aug) 
David Conlon ("Combinatorial Theorems Relative to a Random Set", page 303, Vol 4) Samson Shatashvili ("Gauge Theory Angle at Quantum Integrability", page 1195, Vol 3) 
1 Irish participant listed 
2018 
Rio (19 Aug) Proceedings 1 Proceedings 2 Proceedings 3 
(Ben McKay, rep)
