White oak, maple, walnut, ash, or heart (yellow) pine are all appropriate. Where available, fir was used. The typical width could have been 2 1/4 for the hardwoods, or 2 3/8, 2 7/8, or 3 3/8 in the softwoods (often a mix of widths). Could also have been a custom parquet inlay floor, or interesting french knot border details.
Red oak wasn't really used for much but framing until white oak stocks were exhausted mid last century. It's just not as good a wood.
Casey

In my geographic area, the "good" wood was used on the main floor, where one's guests/company would see it. That would mean white oak, walnut or the really good woods. The second floor, bedrooms and family quarters, had maple and then pine was in the attic.