Source Data Reference for:

City = Cork
Time = 1850

City	Year	Size	Size Comment	Year Comment	Author	Title	Location
Cork	1825	76,000			Tertius Chandler	Four thousand years of urban growth	p518
Cork	1850	85,000			Paul Bairoch	La population des villes europeennes de 800 a 1850
Cork	1850	89,000			Tertius Chandler	Four thousand years of urban growth	p24
Cork	1851	85,700			n/a	Gothaischer Hofkalender