Sylvester O'Halloran

Sylvester O'Halloran (31 December 1728 – 11 August 1807) was an Irish surgeon with an abiding interest in Gaelic poetry and history. For most of his life he lived and practised in Limerick, and was later elected a member of the Royal Irish Academy (RIA).

Early life O'Halloran was the third son of Michael O'Halloran, a prosperous farmer at Caherdavin, County Limerick, and his wife Mary McDonnell. He was named after Sylvester Lloyd, the titular Catholic bishop of Killaloe in 1728–39. His mother's cousin Sean Claragh McDonnell taught him much at an early age, including some Greek and Latin. He went on to a Limerick school run by Robert Cashin, a Protestant clergyman, which was unusual at the time as the O'Hallorans were Roman Catholics during the difficult time of the Penal Laws.

Sylvester and his brothers engaged successfully in areas of life that worked around the restrictions of the Penal Laws. Joseph became a Jesuit and held chairs in rhetoric, philosophy and divinity at the Jesuit College at Bordeaux in France. George became a jeweller and in time a property-owner. Sylvester went to London to learn medicine at the age of 17, particularly studying the methods of Richard Mead, as well as the oculists Taylor and Hillmer. After further study at Leyden, and in Paris under the anatomist and academician Antoine Ferrein, he set up practice as a surgeon in Limerick in early 1749.

Career as surgeon O'Halloran wrote several learned treatises on medical matters, and his fame was acknowledged by his membership of the RIA in 1787. He was a founder of the County Limerick Infirmary that started with 4 beds in 1761 before moving to larger premises at St Francis's Abbey in 1765. The foundation stone of the original infirmary is now preserved in the Sylvester O'Halloran Post Graduate Centre at the University Hospital, Limerick.

While in France, he had been very impressed with the Académie Royale de Chirurgie, which had been founded in Paris in 1731 during the reign of Louis XV.

The historian J. C. Beckett (1912–96) included O'Halloran among those aiming: to vindicate its claims by uncritical admiration for the achievements of pre-Norman Ireland.

Historical bibliography An introduction to the study of the Antiquities of Ireland (1772) Ierne Defended (1774) A general history of Ireland (1778)

Family life In 1752 Sylvester married Mary Casey and they had four sons and a daughter. Their homes were in Change Lane and then on Merchants' Quay; Mary died in 1782. O'Halloran was buried in 1807 at St. Munchin's graveyard, at Killeely which is now a suburb of Limerick. One of their sons was Major-General Sir Joseph O'Halloran, the father of Thomas O'Halloran, after whom the Adelaide suburb of O'Halloran Hill was named.

Limerick public life

Though politically restricted in his life by the Penal Laws, O'Halloran helped establish the county Infirmary (see above), was elected President of the city's Free Debating Society in 1772 and was elected to a committee in 1783 that examined the Shannon navigation. Appropriately, a Limerick bridge over the Shannon has been named after him.