In 1887, John Bartholomew's Gazetteer of the British Isles described Inner Temple like this:
Inner Temple, par., Middlesex, in City of London, 13 ac., pop. 156.
The location is that shown on modern London street maps.
GB Historical GIS / University of Portsmouth, History of Inner Temple, in and London | Map and description, A Vision of Britain through Time.
Date accessed: 11th December 2013
Click here for more detailed advice on finding places within A Vision of Britain through Time, and maybe some references to other places called "Inner Temple".