
Wentworthville is named after D'Arcy Wentworth, father of William Charles Wentworth of Blaxland, Lawson and Wentworth fame. D'Arcy Wentworth arrived as the surgeon on the Second Fleet convict transport "Neptune" in 1790.
In 1810 D'Arcy Wentworth received a land grant to which he added by purchase until he held 2,750 acres. He called the estate Fitzwilliam Place and the house Wentworth Wood House, after an English property of that name owned by Thomas Wentworth, Earl of Strafford.
In the 1840's a highly respected citizen William Fullagar established the Star Inn near Ettalong and Western Road. This inn was the social centre of the day. Fullagar also opened, in 1845, what were for many years the principal cattle saleyards in the colony.
The suburb's railway platform opened as T. R. Smith's Platform in 1883. The name was changed to Wentworthville on 1 August 1885. The line cut through the Wentworth Estate and in the 1880's subdivision of the land began.
Source: Frances Pollon: The Book of Sydney Suburbs, 1988.