Brothers or not, it is remarkable that the spot patterns behind the gill plate, for sure, and along the belly, best I can tell from these pix, are identical !!!

On the trouts I catch, which don't include brookies, spot patterns are like fingerprints. Do you commonly find identical spot patterns on two fish in the same tiny creek ??

Not trying to be argumentative, Len, just curious how brook trout are so different from other trouts.

John