I looked at those maps of my neighborhood from the 1940's and it confirms something. Across the street from me they have really deep backyards. When my neighbor was installing a fence they found cement slabs for an old sidewalk. The fence installer said the old drawings show that there was the intent to have another street there but they abandoned that idea, instead putting up a cul-de-sac in another portion. The old map confirms the street being called out at least. Later maps show it correct.