Try entering your grandfathers name and birth year (or estimated birth year) on familysearch.org and residence in VA to get the 1940 VA census data. There are results there that show not only complete census data, but the images include the road/street, occupation etc.
https://familysearch.org/
The one below is an example – Family name: Laycock, listed occupation Farmer(s)
https://familysearch.org/pal:/MM9.3.1/TH-1961-27751-2449-54?cc=2000219
When you click on the actual image, it gives the road/streetlocation on the far left.
