Update: I went back to check in on the houses in late summer of 2019.
The Oakherst Place Concrete Block National Historic District is showing signs of renewal, even if some houses are still vacant.
These stout homes up by the county lines are fascinating, and worth saving. I looked at some of them several years ago.
The house below, once vacant, is now looking great due to a renovation. Awesome job!
Other houses, such as the one below, are shrouded in trees.
Fascinatingly, the Sanborn maps reveal that the blocks were cast right on the same block.