1793-1830, active 1820s, ironmonger; nail manufacturer; brassfounder, British Sparrow, Isaac Earlysman 1793 - 1830
active 1857-1861, chem. & philosophical inst., barometer & thermometer maker & ironmonger, London G Knight and Company
active 1797-1861, ironmonger, philosophical instrument maker, London, England, British Knight, George
active 1839-1857, chem. & philosophical inst., barometer & thermometer makers & ironmonger, Britain George Knight & Sons
1800-1838, chemical and philosophical instrument maker, ironmonger, London, England, British Richard & George Knight