The "ranch house" would make a good Whately (Dunwitch Horror) or Martense (Lurking Fear) manor.
The "Plantation House" looks like it would belong in a row of similar buildings rather than something out in the middle on it's own. It doesn't really fit what I imagine from any of the stories. Feels way more like something I'd see in a western, to be honest. If I were to use it, I'd put it in an urban suburban or small town setting rather than on it's own our out in the boonies, but I can't think of a specific location in a specific story where it feels like it "fits".
The barn is way too small, but otherwise it's good. As others have said, barns in the US before the mid 20th or so are pretty standard in their general design, so this could exist nigh anywhere and within 200 a year period. It's tempting to think "too small" is a good thing because of the standard gaming terrain foreshortening thing, but barns are very open inside, and that makes that space useful. IMO a barn that figure's can enter adds a lot more play value to the table than a solid "NPC" barn, and without the usual downsides of enterable buildings, to the point where a solid barn just feels like a waste to me.
The house religion selected would be good for "The whisperer in Darkness" farmhouse, or the house in "From Beyond" or a number of others. It looks like it's almost the same pattern as the one with the balcony, but that balcony makes a world of difference.