This appears to have originally been built as an unusually small Plantation Plain-style farmhouse with the wings likely added as the family grew. The orientation of the house has also been changed, as well, with the entryways now located on what would have originally been the sides.
Across the highway on the farm is this unusual barn, which I initially thought was a smokehouse. But as Edwin King pointed out, smokehouses didn’t have chimneys. I’m not sure if it was originally a smokehouse, with the chimney added later, or if it had some other function. I just can’t place it.