That icy blue eye color? My family also originated in Scotland, light blue eyes, red hair, and all. Same as you described your late husband in another post.
Since you thought about my husband’s description, I wonder how many of the other characteristics family members may have had. For my husband as I already said they were weak chin (which he disguised with a trimmed beard, heavy brow, long heavy shouldered torso, short legs, and warrior temperment. In addition he had very heavy bones and skull, very mesomorph physique, he was dyslexic, and he died of Alzheimers at age 75.
I have a theory about Alzheimers. Many of us have heard stories about elderly Indians going out to freeze to death in bad winters so there would be more food for their families. My husband would get hungry and leave the house trying to find food. I had to call the police several times to find him. I learned to quickly get some food into him when he seemed to want to get out. So my theory is that these elderly Indians may have had Alzheimers and got hungry or went out to pee and could not find their way home again. This actually would have a positive survival advantage by leaving more food for their families. This phase of his illness occurred about 1 year before he became really physically dependent. At that time he could do useful things like sweep the sidewalk, rake the leaves, and help me with carpentry projects like sawing a beam after I began the cut. Thus, someone in a primitive situation would be able to help knap flints, skin game, scrape hides, etc. and still be useful, but if they wandered away in starving time, their useful life would be almost done.
I also theorize that this genetic trait would be more common in peripheral regions that were most recently still tribal in their structure. I have done some research which tends to support this theory. My husband was also 1/16th Cree Indian (a Canadian tribe). My older son is a big husky guy and finishing up his 20 years in Special Forces. He had to have his SIX wisdom teeth pulled. At the dental school they said 6 wisdom teeth are found among Esquimos. I suppose that some of them got interbred with the Crees, unless this is also a trait among the Scots. Genetics is so much fun. In addition, my sons both have dark brown eyes. As I said my husbands were clear light blue (very recessive) and mine are hazel. I have some Asiatic tartar in my upper class Germanic heritage, so my theory there is that I have brown eye Asian genes which are recessive to the European hazel eye genes, and they both got the Asian brown eye gene which was more dominant than the blue eye gene.