That's too bad - looks like that neighborhood had promise. At least you tried, though. Nothing like kicking yourself later, thinking about what you might have found!
Nothing like a good clad hunt to make the world brighter after a bust!
If those bungalows are an indicator, maybe the entire area was cleared prior to what I'm guessing is the late 50's construction, the sidewalk work may be third or fourth generation also. But I'd have hit it too!