I am hoping to somehow confirm the type of wood flooring this is. I think I know what it is from my own research, but I'm not an expert. Here are several pics of the wood floor. The lighting was poor and different in some of them but I believe all of the flooring is the same wood type. Any ideas on the kind of wood? I could give some clues that might help but I want to hear thoughts before I do that and potentially introduce bias Thanks!!

Thanks!! I agree that it is very likely pine, however, I guess I'll let the cat out of the bag here, I am wondering if this is "Heart Pine" or the other term is "longleaf pine".

Based on the grain patterns and color visible in your photos, this appears to be Southern Yellow Pine (often simply called Heart Pine in older homes) or Douglas Fir.
Here is a breakdown of the identifying features:
Key Characteristics

• Strong Grain Contrast: The very distinct, dark "cathedral" arches and tight parallel lines are classic markers of conifers like Pine or Fir. Hardwoods like Oak would show small "rays" or "pores" that are absent here.
• Color Variations: The wood shows a deep reddish-amber tone where the finish is intact, which is typical for aged Pine. In the third photo (the underside or unfinished section), the lighter, yellowish-tan color is a giveaway for Southern Yellow Pine.
• Wear Patterns: You can see some "shredding" or splintering of the grain in the first photo. This is common in older softwoods where the softer "springwood" wears away faster than the harder "latewood" (the dark lines).

A quick tip for confirmation: If you can find an inconspicuous spot and press a fingernail into the wood, a softwood (Pine/Fir) will usually leave a slight indentation, whereas a hardwood (like Oak) will not.

You can try denting it with a fingernail but if it's like the pine in my 1800's home, it won't dent. Old antique old growth pine is not like the junk they build houses out of now from Home Depot. It's tight grained and dense.

Yeah I had ChatGPT look at a couple of pictures and it was pretty certain it is heart pine (old growth pine). Thanks!!

Yep, this stuff is very dense. Im pretty sure it's the good stuff (old growth / heart pine) which is very desirable today (and can be very expensive). This is from a farm house built in approximately 1916 that I'm thinking about moving and then gutting/restoring, particularly because it has a ton of this wood in it.

Well played!!!

Damn you! I came to post that!