Parkinson, Norman (2013). "Thomas Fresh (1803-1861), Inspector of Nuisances, Liverpool's first Public Health Officer". Journal of Medical Biography. 21 (4): 238–249. doi:10.1177/0967772013479277. PMID24585830.
Parkinson, Norman (2013). "Thomas Fresh (1803-1861), Inspector of Nuisances, Liverpool's first Public Health Officer". Journal of Medical Biography. 21 (4): 238–249. doi:10.1177/0967772013479277. PMID24585830.