found: Turner, J.W.M. Turner at Petworth, 1970.
found: Petworth magazine, June 2015:inside back cover (Petworth, West Sussex)
found: Wikipedia, viewed 8 September 2017(Petworth; small town and civil parish near Chichester, West Sussex, England)
found: Webster's New geog. dict., 1984:p.948 (Petworth; village, West Sussex, England, ab. 42 m. SSW of London)
found: GeoNames, algorithmically matched, 2009(ppl; 50°59ʹ12ʺN 000°36ʹ36ʺW)
found: Collins Britain atlas and gazetteer, 1999(Petworth, W.Suss.; small town, 13m/21km NE of Chichester; Petworth House, 17c-19c, with large deer park)