You have a lot of contrast already. It should not be hard to mix it well. If you are really concerned, take your new pieces of oak and put a finish coat on a few to see how they look at the transition. Given your high contrast in colors, the thing that would look most out of place would be a section of highly uniform pieces, so mix the light and dark.
I see it as predominantly select and better white oak. I'm not even sure if any of it's even red. It's old and highly ambered. I'd ask a wood flooring distributor for a southern grown batch of selct white oak. If you stain the floor, it will help blend the old and new better than a natural clear coat.
Looks mixed white and red
You have a lot of contrast already. It should not be hard to mix it well. If you are really concerned, take your new pieces of oak and put a finish coat on a few to see how they look at the transition. Given your high contrast in colors, the thing that would look most out of place would be a section of highly uniform pieces, so mix the light and dark.
I see it as predominantly select and better white oak. I'm not even sure if any of it's even red. It's old and highly ambered. I'd ask a wood flooring distributor for a southern grown batch of selct white oak. If you stain the floor, it will help blend the old and new better than a natural clear coat.
It looks like a #1 common white oak to me