I can completely understand the confusion here.
Turnham Green as mentioned in earlier posts, is in Chiswick. It is a green in the (now) middle of Chiswick which has a late C19 church - Christchurch still operating, but no graveyard.
For the period you are looking at, the parish church would have been St. Nicholas, which is of significant historical interest, including its churchyard which closed in 1854 and includes the graves of both Hogarth and Whistler. (The churchyard re-opened in 1867 following a grant of land by a local benefactor, but for any burials betwen those dates, anyone searching will need to look further afield outside London, in for example, the Woking cemetery.)Thanks to the efforts of the Friends of St Nicholas, the parish registers have been restored.
See this link for further info:
http://www.stnicholaschiswick.org/heritage/Archives.shtmlNeedless to say, Turnham Green today is VERY exclusive, and many of the original dwellings that would have stood around it during the period that you are researching have long since disappeared. I would be happy to try and help further with any Chiswick-specific question.