This script exports tagged faces from the Adobe Lightroom CC SQLlite Database. Just give the script a name you entered in Lightroom and you get JPGs just with the faces and not the whole image.
There are a few library dependencies, which you can install using pip:
$ pip install -r requirements.txt
$ ./getfaces.py -d <path to Lightroom DB File> -o <output path> -n <Name of the person> [-ee extension1, extension2,... -cf <clipping factor>]