Here’s some comments from another site (reddit?) that the original poster had an interesting response on (Used your key words!):
“The 1930 Census lists Herbert E. King and his wife Eleanor, their son Herbert C. (age 11/12) living with his parents John and Florence King on Slate Road in New Castle, Delaware.
Fits the Herb and Ellie picture. Fits the 12 year old son in the 1940 Skyline Drive picture.
Who knows...just a guess.
Slate Road doesn’t seem to exist anymore, but from further in the census it appears to have been near Red Lion Road. Anybody know?”
Very interesting. The photo in post 39 of the DC-3 landing—my first thought was of the New Castle Airport, which has a highway right next to it(Hwy 13). Don’t know if that is what it looked like back then,
I think we are getting warm. The 1940 census isn’t availble unitl 2010/2011, right?(70 years).