Downstairs, the floors are a very fine-grained oak. Maybe quartersawn:
The entire upstairs, though, is carpeted.
The current master bedroom combined what used to be a sewing room with one of the bedrooms. We noticed a strip of carpet that was not tacked down and peeled it back:
I peeled back another section, and it looks like most of the floor was painted. I happen to like painted wood floors (not as much as stained/finished floors, but I like them), but this wood is beautiful. I can't tell if it's heart pine or fir. Any tips on telling the difference? I can post better pics later. We have heart pine in our current house, original to the 1920 house. I love it. But I'm not sure about this. It's also very wide-- noticeably wider than downstairs. I know that whatever it is would have been cheaper wood at that time...