I was just watching our birth video from when Taylor was born, and seeing how both Will and I thought he looked exactly like Preston when he came out. I was trying to find a couple of photos to compare them at the same age (as Taylor is now). I couldn't find one where they were doing the exact same sort of pose or face, but this one is close enough.
They definitely look related don't they? Taylor's hair in the natural light is a lot darker red than Preston's ever was. I think he might keep his redhair, whereas Preston is now a strawberry blonde.