I found these anachronisms sitting on Chauncey Street just east of Ralph Avenue, and no amount of Googling would answer my question--why are they both still standing? The first structure, house number 272, is dilapidated but inhabited, and the sloped-roof facing-front style is reminiscent of colonial and early 19th century houses. Still, it seems odd that this structure, which looks more like an outbuilding than a house, would have survived, especially given that it nestles so closely with the apartment building to the east of it, so perhaps it was built later.
The second building, house number 268, is clearly a survivor, and looks a lot like other cute little houses from the mid-19th century around Bed-Stuy. In this case, it seems as though the owner was a holdout when a developer bought up the lots around them, and the result is the strange juxtaposition of this old house pressed against the sidewalk with driveways on either side leading to townhomes that looks less than 20 years old.