About John Killaly
Lived 1776 – 1832 (aged 55–56). John Killaly was a civil engineer and engineer.
John Killaly (1776–1832) was the most significant Irish canal engineer working originally for the Grand Canal company and later, as an engineer, under the Directors-General of Inland Navigation.
Career The name Killaly is rare and associated with the county of Offaly, but no record of his parentage or birthplace has been discovered and it is possible that he was born and educated in England. In around 1791 Killaly started carrying out some surveys for the Grand Canal. By 1794 he had made such an impression on the directors that he was asked to join the company at a salary of £150 per annum. By 1796 they reported that from being 'a mere measurer and surveyor' he had become 'the complete superintendent of all kinds of work'.
By this time he had become the company's chief with a salary of around £800. On the opening of the canal in 1803 he became an engineer under the Directors-General of Inland Navigation, whilst still receiving a reduced salary from the Grand Canal company until 1810. In 1805, he was sent on a six-week fact finding tour of engineering works in England and Wales, reporting on canals, bridges, docks and rail roads. On his resignation in 1810 the Board recorded that Killaly had 'conducted himself with the most unwearied assiduity and the most perfect and unimpeached integrity' during his service to the company.
Between 1820 and 1826, Killaly was seconded by the government to deal with some 88 miles of road improvements to provide employment in Clare, parts of Limerick, Galway, Mayo and Roscommon, including numerous bridges. At times he was responsible for more than 9,000 workers in these famine relief schemes. Reporting in 1822, Killaly said "the great destruction of morals and waste of public property which have taken place in the county of Clare from this cause (jobbing) is beyond my power to calculate" and in 1830 he expressed the hope that the presentment system would be eradicated.
Family In 1799, Killaly married Alicia Hamilton, a daughter of George Hamilton, the owner of the principal flour mill on the Tullamore River. In 1804, Killaly leased the mill property from him at an annual rent of the £300 and moved into the Mill House, with his growing family, which eventually numbered four sons and three daughters. Three of his sons (Hamilton Hartley, Richard Griffith and Benjamin) later graduated from the University of Dublin and two of them became civil engineers like their father. Hamilton Hartley Killaly emigrated to Canada and became an engineer on the Welland Canal and later the first Chairman and Chief Engineer of the Board of Works for Lower Canada. His son became the first president of the Canadian Society of Civil Engineers in 1887.
On his death in 1832 a large memorial was erected by his widow in St. Patrick's Cathedral, Dublin.
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Important facts
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Frequently asked questions
Who was John Killaly?
Irish civil engineer
When was John Killaly born?
John Killaly was born in 1776.
When did John Killaly die?
John Killaly died in 1832.
What was John Killaly's occupation?
John Killaly was a civil engineer and engineer.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). John Killaly. https://biography.guide/john-killaly/
MLA: "John Killaly." Biography.guide, https://biography.guide/john-killaly/.
Chicago: "John Killaly." Biography.guide. https://biography.guide/john-killaly/.
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