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John Lysaght (1832-1895) of John Lysaght
1832 Born at Mallow, County Cork, son of William and Frances Lysaght
1851 Living at Townfield Lane, Liscard, Cheshire (age 19 born Cork, Ireland), Civil Engineer. With his widowed mother Frances (age 50 born Cork), a Landed Proprietor and her children Thomas R. (age 23 born Cork), Architect; Sarah G. (age 15 born Cork); George (age 13 born Cork)
1856 Took over a small business galvanising buckets from his friend, the son of John Clark
1859 Listed as Lysaght, John., Galvanised Iron Manufacturer and merchant, Temple backs. h: 11 Berkeley Square 
1861 Living at Yatton Shut (age 29 born Ireland), Galvanised Iron Manufacturer. With his wife Ellen (age 29 born Bath) and their children Florence R. (age 1 born Clevedon) and John George (age 1 month born Yatton). Also two servants. 
1871 John Lysaght 39, galvanized Iron manufacturer, living at Bedminster, with Ellen Lysaght 39, Florence Katherine Lysaght 11, St. John George Lysaght, 10, Cuthbert Vere Lysaght, 9, Frederick Percy Lysaght, 7, Arthur Royse Lysaght, 6, Ethel Maria Lysaght, 5, Beatrice Ringrose Lysaght, 4, Godfrey Hastings Lysaght 2
1877 Patent application by John Lysaght, of the St. Vincent's Corrugated Iron Works, in the city of Bristol, Corrugated Iron Manufacturer, and Christopher James, of No. 4, Alexandra-road, Clifton, in the city of Bristol, Consulting Engineer, in respect of the invention of " improvements in annealing furnaces"
1891 Living at Springfort, Westbury-on-Trym (age 59 born Mallow, Cork), Iron Master, Employer and JP. Widower. With his daughter Florence K. Bush (age 31 born Clevedon); son St. John G. (age 30 born Yatton), Civil Engineer; daughter Ethel M. Gage (age 25 born Backwell); daughter Beatrice R. (age 24 born Backwell); son Gerald S. (age 21 born Backwell), Civil Engineer; son-in-law Alfred G. de Lisle Bush (age 41 born Perth West Australia), Merchant; and granddaughter Vera G. Bush (age 2 months born Stoke Bishop). Also nine servants. 
1895 Q4. Died. Barton Regis, Gloucestershire registration district.