The Royal School, Armagh | Founded 1608
Notable Alumni
From astronomy and scientific discovery to naval command, medicine, statesmanship and military history, the achievements of former pupils reflect the breadth of talent associated with The Royal School, Armagh. Their stories form part of the School’s rich and enduring history.
A legacy of learning, service and achievementFormer pupils who made their mark
Since its foundation in 1608, RSA has educated generations of young people who went on to make notable contributions in public life, science, medicine and the armed forces. These profiles celebrate a selection of individuals whose achievements form part of the School’s remarkable history.
Professor David Stewart Jenkinson, FRS
Professor David Stewart Jenkinson (1928–2011) was one of the most influential soil scientists of his generation. Born in Los Angeles, he returned to Northern Ireland with his family during the economic difficulties of the early 1930s. The family settled on a farm near Portadown, helping to establish his lifelong connection with the soil.
David attended The Royal School from 1940 to 1946 before going on to Trinity College Dublin, where he became a Sizar and received the Louis Purser Prize. After completing his doctorate, he worked in industry in Newcastle upon Tyne before becoming a lecturer in agricultural chemistry at the University of Reading.
In 1957 he joined Rothamsted Experimental Station, where his research helped transform scientific understanding of soil organic matter and the movement of carbon through soils. His work included methods for measuring soil organic carbon, the Rothamsted Carbon Model and the use of nitrogen-15 isotopes to investigate fertiliser efficiency.
He was elected a Fellow of the Royal Society in 1991 and became an Honorary Member of the Soil Science Society of America in 1995. His research continues to inform the study of soils and sustainable agriculture.
Science, astronomy and medicine
From the study of distant stars to the health of sailors at sea, these alumni pursued knowledge in fields that reached far beyond their own time.
Dr Arthur A. Rambaut, FRS
Astronomer Royal for Ireland · Radcliffe Observer
Arthur Alcock Rambaut (1859–1923) attended RSA from 1874 to 1877. He went on to Trinity College Dublin, where he gained a scholarship and graduated with a gold medal in mathematics and mathematical physics.
After graduating, he returned to his old school as science master before joining Dunsink Observatory in 1882. In 1892 he became Astronomer Royal for Ireland and Andrews Professor of Astronomy at Trinity College Dublin.
In 1897 he was appointed Radcliffe Observer at Oxford, where he continued his astronomical work until his death. He pioneered the use of photography in astronomical observation and was elected a Fellow of the Royal Society in 1900.
Dr Leonard Gillespie, MD
Physician to Nelson’s Mediterranean Fleet
Born in Armagh in 1758, Leonard Gillespie began his naval medical career in 1777 aboard HMS Royal Oak. After further service across the Atlantic and the Caribbean, he developed considerable experience in the illnesses and conditions affecting sailors serving at sea.
In August 1804, Gillespie was appointed Physician to the Fleet in the Mediterranean and became an adviser to Admiral Lord Nelson. His responsibilities included reviewing medical reports from ships, advising surgeons, arranging medical supplies and overseeing naval hospitals.
His work contributed to the health and welfare of sailors serving during a critical period of the Napoleonic Wars. He was associated with HMS Victory and Nelson’s fleet during this period.
Statesmanship and public life
Political leadership and international diplomacy shaped Ireland, Britain and the wider world.
Robert Stewart, Viscount Castlereagh, later 2nd Marquess of Londonderry, KG, GCH
Foreign Secretary · Chief Secretary for Ireland
Robert Stewart (1769–1822) attended RSA from 1777 to 1781. A letter home from his schooldays records his determination to succeed: “I am highest in my class; no boy shall get above me.”
First elected to Parliament for County Down in 1790, he became Chief Secretary for Ireland in 1798. He was closely involved in the parliamentary campaign for the Act of Union and later held senior ministerial offices, including Secretary of State for War and the Colonies in 1805–1806 and 1807–1809.
In 1812 he became Secretary of State for Foreign Affairs, a position he held until 1822. He played a leading role in British diplomacy during and after the Napoleonic Wars, particularly at the Congress of Vienna, helping shape the post-war European settlement.
He succeeded to the title of 2nd Marquess of Londonderry in 1821 and died in 1822.
The Most Hon. Richard Wellesley, 1st Marquess Wellesley, KG, PC
Governor-General of India · Lord Lieutenant of Ireland
Richard Wellesley (1760–1842) was an Anglo-Irish statesman and the elder brother of Arthur Wellesley, the future Duke of Wellington. Both were sons of Garret Wesley, 1st Earl of Mornington.
Appointed Governor-General of Bengal in 1797, Richard took up the post in 1798. His time in India was marked by major military campaigns, territorial expansion and administrative change.
He later served as Foreign Secretary and twice as Lord Lieutenant of Ireland, holding the latter office from 1821 to 1828 and again from 1833 to 1834. His career placed him at the centre of British and Irish public life during a period of considerable political change.
Military command and naval history
From the Royal Navy at Jutland to campaigns against Napoleonic France and the War of 1812, these lives were shaped by service and command.
Admiral Sir Frederic Charles Dreyer, GBE, KCB
Royal Navy · Battle of Jutland
Frederic Charles Dreyer (1878–1956) was the son of Dr John Louis Emil Dreyer, Director of Armagh Observatory. After attending RSA, he entered the Royal Navy in 1891 and progressed through its command structure.
A specialist in naval gunnery and fire control, Dreyer served as captain of HMS Iron Duke, flagship of Admiral Sir John Jellicoe, at the Battle of Jutland in 1916. The ship played a central role in the largest fleet engagement of the First World War.
After the war, Dreyer represented Britain on the League of Nations Military Committee. He became rear-admiral in 1923 and rose to the rank of admiral in 1932. He later commanded the China Station and became one of the senior figures of his generation in the Royal Navy.
Field Marshal Arthur Wellesley, 1st Duke of Wellington, KG, GCB, GCH, PC
Military commander · Prime Minister
Arthur Wellesley (1769–1852), the younger brother of Richard Wellesley, became one of Britain's most celebrated military commanders. He served in India and led British and allied troops in the Peninsular War against Napoleon's armies.
In 1814 he was created Duke of Wellington. The following year, he commanded the allied army that defeated Napoleon at the Battle of Waterloo, ending Napoleon's brief return to power.
Wellington subsequently served twice as Prime Minister of the United Kingdom, from 1828 to 1830 and briefly in 1834. His long public career combined military command with some of the highest responsibilities in British government.
Alongside his brother Richard, he remains one of the best-known figures associated with the Wellesley family and its influence on British and Irish history.
Major-General Sir Edward Michael Pakenham, GCB
British Army · Peninsular War · Battle of New Orleans
Edward Michael Pakenham (1778–1815) pursued a distinguished military career, serving in Ireland, the West Indies and Europe. He fought under the Duke of Wellington during the Peninsular War, including at the Battle of Salamanca in 1812.
Promoted to major-general, Pakenham was sent to North America in 1814 to command British forces during the War of 1812. His final campaign was the assault on New Orleans, defended by American forces under General Andrew Jackson.
On 8 January 1815, Pakenham was killed while leading his troops against the American positions. The Treaty of Ghent had already been signed in December 1814, but news of the peace had not reached the forces before the battle.
His death at New Orleans brought a close to a military career that had included service alongside Wellington in the major campaigns of the Napoleonic era.
Our history continues to be written
These profiles represent just a selection of the remarkable lives associated with the history of The Royal School, Armagh. If you have information about a former pupil whose achievements could enrich this collection, please contact the School.
