Atlanta, GA
Leslie P. DeGroot definitely lived in Atlanta for a period of time, but research thus far has yet to uncover an address associated with DeGroot, that has or had a residence there, that matches this design. Several Sanborn Fire Insurance maps for Atlanta have also been researched. It seems likely that DeGroot never built the house, or perhaps he built it in a location other than Atlanta, GA. Hopefully, time will tell.
I am still looking for this one, but so far, no luck.