In 1887, John Bartholomew's Gazetteer of the British Isles described Sinfin like this:
Sinfin Moor, par., in co. and 3 miles SE. of Derby, pop. 24.
A Vision of Britain through Time includes a large library of local statistics for administrative units. For the best overall sense of how the area containing Sinfin has changed, please see our redistricted information for the modern district of Derby. More detailed statistical data are available under Units and statistics, which includes both administrative units covering Sinfin and units named after it.
GB Historical GIS / University of Portsmouth, History of Sinfin, in Derby and Derbyshire | Map and description, A Vision of Britain through Time.
Date accessed: 07th October 2015
Click here for more detailed advice on finding places within A Vision of Britain through Time, and maybe some references to other places called "Sinfin".