1. Ivison Macadam was the editor and chairman of the advisory board of the Annual Register of World Events; a longtime member of the editorial board of the Round Table and sat on the governing bodies of King's College, London and other organisations.
Ivison Macadam was invested by Chief Scout and founder Sir Robert Baden-Powell.
Ivison Macadam served in World War I, attached to the City of Edinburgh Royal Engineers.
Ivison Macadam was awarded the OBE in 1919 at the age of 24 for his service there.
Ivison Macadam studied at King's College London and Christ's College, Cambridge.
Ivison Macadam was the founder president of the National Union of Students, being elected their first president in 1922 when the Inter-Varsity Association and the International Students Bureau merged at a joint meeting held at the University of London.
Ivison Macadam was the then president of King's College Union Society.
Ivison Macadam was involved in the formation Confederation Internationale des Etudiants bringing together student bodies from the original member countries of the League of Nations, including the US, and subsequently others.
Ivison Macadam chaired until 1929 the CIE's commission responsible for International Relations and Travel.
Ivison Macadam stepped down as the NUS President in December 1922 to serve as Honorary Organising Secretary, which became in effect their senior executive until 1929.
In 1927 Ivison Macadam spearheaded a successful fundraising appeal to endow the Union and place it on a sound financial footing.
Ivison Macadam was one of the original trustees of the National Union of Students and remained one until the end of his life.
The main students' union building and Faculty of Engineering at King's College's Strand campus is named the Ivison Macadam Building in his honour.
Ivison Macadam oversaw the growth of the institute from William Pitt's former Cabinet Room where as Prime Minister Pitt had presided over his Cabinet overlooking St James's Square located above the entrance hall.
Ivison Macadam was responsible for numerous international conferences around the world.
Ivison Macadam organised the first Commonwealth Relations Conference at Hart House, University of Toronto, Canada in 1933,.
Ivison Macadam was a participant in the Congress of Europe at The Hague, Netherlands in 1948.
Ivison Macadam travelled to the British Dominions and helped the independent establishment of the various Commonwealth Institutes of International Affairs or where such bodies had earlier been established in both Australia and Canada to generate financial support from benefactors in order that they could have their own full-time secretariats.
Ivison Macadam organised persons, events and work with equal stern objectivity.
Ivison Macadam was the institute's chief executive for a period of 25 years during which it grew from a promising pioneering experiment into a well established and internationally respected centre for the study and discussion of world affairs.
Ivison Macadam was a gifted promoter of Chatham House and its objectives, obtaining endowments in Britain and the Commonwealth and gaining the support of the great American foundations, Carnegie, Rockefeller and later Ford.
Strangely among its most memorable today is one of its first that it is believed Ivison Macadam simply scribbled out in the similur manner to the way he thought as 'Keep Calm and Carry On' and told the staff to make it look noticeable and official for use in case of invasion.
Ivison Macadam returned to the Royal Institute in March 1941 to continue its war work and oversee the post-war international reconstruction planning there with the additional important support of the US Rockefeller Foundation.
Former prime minister Harold Macmillan told Ivison Macadam's succeeding editor that he could never have written his memoirs without reference to the Annual Register.
Ivison Macadam read these and annotated them with his criticisms or his views on improvements of prior prime minister's speeches or policies written in the margins.
Ivison Macadam's marked up volumes of The Annual Register are today in the Churchill Archives at Cambridge University.
Ivison Macadam put the Annual Register on a sound financial footing and strengthened its worldwide reputation by bringing in a wide range of specialist contributors.
Ivison Macadam was a member of the editorial body of The Round Table: A quarterly Review of the Politics of the British Commonwealth as it was known at the time.
Ivison Macadam served as the Round Table's Honorary Secretary in the postwar years.
On his election Ivison Macadam preposed that two students nominated by their peers sit on the governing body.
In 1919, at the age of 25, Ivison Macadam entered the Faculty of Engineering at King's College as a student.
In return Sir Ivison Macadam has evoked the affection he has given.
Ivison Macadam was responsible for devising the concept of, creating, editing and organising the printing and distribution of the official royal programs to be published under the auspices of the King George's Jubilee Trust.
When Ivison Macadam was only seven, his father was shot and killed by a mentally disturbed gunman in an Edinburgh tragedy in 1902.
Ivison Macadam's parents were Elliott Ruggles Corbett and Alta Smith Corbett.
Ivison Macadam was later Chairman of the Eastern Counties Women's Conservative Associations.
Ivison Macadam died on 22 December 1974, at his London home at 16 Upper Belgrave Street, London.
Ivison Macadam is buried with his wife next to his father in Portobello Cemetery in Edinburgh.